Apr 28, 2016 ... SMTP Port: * : 587; Use SMTP Authentication: enabled; Enable SMTP over SSL or TLS? : TLS. generate this message : SMTP connect() failed. https ...Oct 9, 2019 · 4. To send email using the Office365 smtp server, the "from" user and the "host" user must be the same. So I added this setting in Django in order to send email to the admins: SERVER_EMAIL = EMAIL_HOST_USER. Share. Improve this answer. Follow. edited Oct 18, 2019 at 15:36. answered Oct 18, 2019 at 15:30. Jul 8, 2021 ... SMTP Server: smtp.office365.com. Port: 587. Username: [email protected]. User SSL/TLS: Always. Last Test Result. (external@email ...Oct 31, 2016 · I have an application in my server (Windows Server 2012 Stanrdard x64) that sends mails with smtp.office365.com with port 587. I authorized only input HTTP connections and I blocked all output connections except protocol TCP with port 587 but this doesn't work. The mails aren't sended. Addresses: Lists the FQDNs or wildcard domain names and IP address ranges for the endpoint set. Note that an IP address range is in CIDR format and may include many individual IP addresses in the specified network. Ports: Lists the TCP or UDP ports that are combined with listed IP addresses to form the network endpoint. Apr 28, 2023 · Ensuite, cliquez sur l’option Gérer les applications de messagerie. Comment ouvrir les réglages SMTP dans le centre d’administration de Microsoft 365. Cochez la case pour SMTP authentifié dans la liste des options. Ensuite, cliquez sur le bouton Enregistrer les modifications en bas. Aug 25, 2014 · Everyone is familiar with sending a test email through an SMTP server using telnet. However Office 365 requires authenticating the user account and does not play fair the traditional way. Use the following information for sending a test email through Office 365 using Powershell. Step 1: Run Powershell Powershell is available with Windows XP onwards. Step 2: Enter your Office 365 User Details ... Feb 21, 2023 · While no longer supported, our servers still allow clients to use those older versions of TLS when connecting to the SMTP AUTH endpoint (smtp.office365.com). In 2022, we plan to completely disable those older TLS versions to secure our customers and meet those security and compliance requirements. However, due to significant usage, …Robert PC Help. Independent Advisor. Replied on July 20, 2018. Report abuse. Ok, to find out exactly what these are in your case, log in to your Outlook account, go to Mail settings, from there it's in Accounts/POP and EMAIL, under SMTP settings. For Office 365 its; Server name: smtp.office365.com. Port: 587.outlook.office365.com. Username. The email address you want to set up. [email protected]. Port. The port number your incoming mail server uses. Most …Feb 21, 2023 · If customers have SMTP AUTH clients that only support older TLS versions, they need to be configured to use the new endpoint for world wide: smtp-legacy.office365.com; Customers who use Microsoft 365 operated by 21 Vianet need to configure their clients to use the endpoint. smtp-legacy.partner.outlook.cn The issue seems to be due to smtp.office365.com using STARTTLS for the connection security. I have tried to enable STARTTLS through the jenkins.xml config file, by adding the following argument:-Dmail.smtp.starttls.enable=true. Is this correct switch/parameter? Is jenkins.xml the correct file to update?Jun 1, 2023 · SMTP (Simple Mail Transfer Protocol) is an application layer protocol used for email sending. When a client needs to send an email, the client opens a TCP connection to an SMTP server which always listens to the appropriate TCP port (TCP 25 by default). Office 365 SMTP settings must be set in an email client to send an email.If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need ...Nov 20, 2016 · To configure your device or application, connect directly to Office 365 using the SMTP client submission endpoint smtp.office365.com. Each device/application must be able to authenticate with Office 365. It can have its own sender address, or all devices can use one address, such as *** Email address is removed for privacy ***.nodemailer 2.x configuration for Office 365 direct send. I'm using nodemailer v2.4.2 with node.js v4.4.7 and I want to send emails from my server via my Office 365 SMTP mail server. I'm using the smtpTransport v2.5.0 with this configuration: host: 'smtp.office365.com', port: 25, // …Your printer is connected to the server named smtp.office365.com. You entered an email address and password for Microsoft 365 or Office 365 account/mailbox …Nov 23, 2023 · Configure the Email Tool as shown below. Use the password generated above instead of the password you typically use to log in to Gmail in the Password section below: SMTP: smtp.gmail.com. Port: 465. Encryption: SSL/TLS. SMTP Authentication: Enabled. Username: <Email Address>. Password: …Apr 16, 2019 ... Port: 587; Click Continue. I know this is the same issue that an other fellow comrade had, so the post is fairly simillar. However, even with ...Si vous essayez d’ajouter votre compte Outlook.com à Outlook ou à une autre application de messagerie, vous aurez peut-être besoin des paramètres POP, IMAP ou SMTP. Vous pouvez les trouver ci-dessous ou en les affichant dans vos paramètres de Outlook.com. Outlook et Outlook.com peuvent être en mesure de détecter automatiquement les ...Info: DEBUG SMTP: trying to connect to host "smtp.mail.gmail.com", port 587, isSSL false Severe: PWC6117: File "null" not found Here is my spring configurationFeb 21, 2023 · If customers have SMTP AUTH clients that only support older TLS versions, they need to be configured to use the new endpoint for world wide: smtp-legacy.office365.com; Customers who use Microsoft 365 operated by 21 Vianet need to configure their clients to use the endpoint. smtp-legacy.partner.outlook.cn SMTP: smtp-mail.outlook.com. Port: 25 or 587. Encrypted Connection: TLS. Username: Your Username. Password: Your Password. This won't work on mac os x mail unless you disable pop in your outlook.com account first. If you have mac os x mail, and you don't disable pop in your outlook.com account first, mail will automatically setup pop and …Discover if the mail servers for smtp.office365.com can be reached through a secure connection.. To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. . Futhermore we …Aug 18, 2021 · Update (April 2023): For Microsoft 365 operated by 21Vianet, TLS1.0 and TLS1.1 for SMTP AUTH will no longer be supported after June 30, 2023. ... Legacy clients and devices will need to be configured to submit using the new endpoint smtp-legacy.office365.com. Customers who use Microsoft 365 operated by 21Vianet need to …TCP port 587. Advanced Delivery I set the FQDN as the DC where the SMTP server is installed. I set the smart host to the MX record that is assigned to our domain in DynDNS (Note: We use Barracuda to send our mail through and the MX record is set to what Barracuda has assigned us). I’ve also tried using smtp.office365.com.- In the Firewall I’ve:16 hours ago · Enable SMTP AUTH for specific mailboxes. Open the Microsoft 365 admin center and go to Users > Active users. Select the user, and in the flyout that appears, click Mail. In the Email apps section, click Manage email apps. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled.I am using Microsoft outlook SMTP details for sending emails from my website to other users. I configured Queue/Jobs functionality to send emails. SMTP settings. MAIL_DRIVER=smtp MAIL_HOST=smtp.office365.com MAIL_PORT=587 [email protected] MAIL_PASSWORD=abcyxz45 MAIL_FROM_NAME=ABC Mailer [email protected] …Whitelist your Server URL in the office365. Restart Postfix and Send some email to test it. Multiple Domains and Sender Based Relay PostFIX Office365. Update the main.cf configuration of Postfix to Support Sender based relay. Create a relay_by_sender file for Postfix and Keep the Mail Server (MX) details.Aug 25, 2014 · Everyone is familiar with sending a test email through an SMTP server using telnet. However Office 365 requires authenticating the user account and does not play fair the traditional way. Use the following information for sending a test email through Office 365 using Powershell. Step 1: Run Powershell Powershell is available with Windows XP onwards. Step 2: Enter your Office 365 User Details ... In the New Connector window, select From: Your organization’s email server (1), select To: Office 365 (2), click Next (3). Selecting a mail flow scenario. In the next window, enter the name SMTP Relay (Non-TLS) or choose your own name (1), type in the description Accept relay from on-premises SMTP Server (2), uncheck Retain internal Exchange ...If you are not using SMTP authentication, specify the smart host as Office 365 MX record for the respective domain and use port no 25. Smart host: domain-com.mail.protection.outlook.com. port:25. SMTP authentication: Null. Whitelist your web server outgoing IP on Office 365 connection filter. EAC > Protection > Connection filter > Allow list.Nov 2, 2023 · POP3 and IMAP4 provide access to the basic email features of Exchange Online and allow for offline email access, but don't offer rich email, calendaring, and contact management, or other features that are available when users connect with Outlook, Exchange ActiveSync, Outlook on the web (formerly known as Outlook Web App), or Outlook Voice Access. If you’re planning to build your dream home in Port Charlotte, FL, one of the most important decisions you’ll need to make is choosing the right home builder. With so many options ...Resource account in Office 365 means the room and equipment mailbox created in Office 365 admin center. In most of cases smtp authentication issue is related to network, firewall settings, here’s a list Office 365 URLs and IP address ranges, make sure IP and traffics are not blocked. On the other hand, we shouldn’t neglect the potential ...Apr 3, 2023 · 虽然不再受支持，但服务器仍允许客户端在连接到 SMTP AUTH 终结点时使用旧版 TLS， (smtp.office365.com) 。 在 2022 年，我们计划完全禁用这些较旧的 TLS 版本，以保护我们的客户并满足这些安全性和合规性要求。 但是，由于大量使用，我们创建 ...Server And Port Hostname or IP address: smtp.office365.com. Port number of the SMTP server: 587. Encryption Protocol to use for data encryption: TLSv1.2 (I've ...Přihlaste se ke svému účtu pomocí aplikace Outlook Web App. Pokud potřebujete s přihlášením pomoct, potřebné informace najdete v článku Přihlášení k Outlook Web Appu. V Outlook Web Appu vyberte na panelu nástrojů Nastavení > Pošta > POP a IMAP. Název serveru POP3, IMAP4 a SMTP a další nastavení, která asi budete muset ...To send emails using Office365 server enter these details: SMTP Host: smtp.office365.com. SMTP Port: 587. SSL Protocol: OFF. TLS Protocol: ON. SMTP Username: (your Office365 username) SMTP Password: (your Office365 password) Note: Make sure the “from” email/account is using your Office365 email address.smtpclient.send hangs while trying to send email via office 365. I am using this code to send email using office 365 exchange server. var port = 587; var username = "[email protected]"; var password = "password"; var to = "[email protected]"; var subject = "test message"; var body = "test message"; Office 365 SMTP settings. Server Address: smtp.office365.com. Username: Your Office 365 Address (e.g. [email protected]) Password: Your Office 365 Password. Port Number: 587 (With TLS) Authentication: Required. Sending Limits: 10,000 Emails a day. To know more about Office 365 SMTP settings, Click here. Ans. SMTP (Simple Mail Transfer Protocol) is for sending emails, while POP (Post Office Protocol) and IMAP (Internet Message Access Protocol) are for receiving and managing emails. IMAP keeps emails on the server, while POP typically downloads them to your device. Q3.Jul 8, 2021 ... SMTP Server: smtp.office365.com. Port: 587. Username: [email protected]. User SSL/TLS: Always. Last Test Result. (external@email ...Dec 9, 2022 · Step 1: Log in to the Microsoft Outlook mail app. Then, go to File > Account Settings > Server Settings. Step 2: Click Outgoing Mail to set up your SMTP Outgoing Server settings. Note: Don’t use a custom IP address as the mail server as they aren’t supported by Office 365.To send emails using Office365 server enter these details: SMTP Host: smtp.office365.com. SMTP Port: 587. SSL Protocol: OFF. TLS Protocol: ON. SMTP Username: (your Office365 username) SMTP Password: (your Office365 password) Note: Make sure the “from” email/account is using your Office365 email address.There is no one port number for a computer. Computers use multiple ports to accommodate different processes running on the computer. The port number in use varies on the software o...SMTP Host: smtp.office365.com SMTP Port: 587 Encryption: TLS SMTP Username: (your Office365 username) SMTP Password: (your Office365 password) Instead of using a …SMTP 主机名 发送邮件服务器名称。 通常为 smtp.yourprovider.com smtp.office365.com SMTP 用户名 想要设置的电子邮件地址。 [email protected]， SMTP 密码 与你的电子邮件帐户相关联的密码。-----SSL？ 你是否使用 SSL 加密电子邮件？ 已启用I am trying to setup out JSS to relay messages out to Office 365. All of our mailboxes are in the cloud.I have it setup to use smtp.office365.com on port ...Set the RECEPTION PROTOCOL to SMTP; Set the MAX. RECEPTION EMAIL SIZE to what you need 2MB is the default; As you can see in the screen shot I have set mine to 10MB ; Ensure the EMAIL STORAGE IN SERVER is set to OFF; Set the SMTP SERVER NAME to SMTP.OFFICE365.COM; Set the SMTP PORT NO. to 587. This is …When you’re planning a trip to Seattle, you want to make sure you get the most out of your visit. One of the best ways to do that is by taking advantage of a cruise port shuttle. T...Outgoing Server: smtp.office365.com. Step 12: For Outgoing Server (SMTP), select port 465 (with SSL) or port 587 (without SSL): Step 13: Once the settings are verified, your account is active and ready to use. Step 14: To test your new email account, go to Messages and try sending and receiving emails. Step 15: Click the Create button.Here are the correct settings you should use to connect Hesk to Office365.com (Microsoft 365): » Email sending. To send emails using Office365 server, enter these details: SMTP Host: smtp.office365.com SMTP Port: 587 Encryption: TLS SMTP Username: (your Office365 username) SMTP Password: (your Office365 password)With port: 465 (SMTP Protocol), you can try enable ssl via properties: "mail.smtp.ssl.enable": true. mail.smtp.ssl.enable: If set to true, use SSL to connect and use the SSL port by default. Defaults to false for the "smtp" protocol and true for the "smtps" protocol. Using spring boot, add properties to application.yml: mail: ...Na próxima tela, digite smtp.office365.com como Outgoing Mail Server Hostname e depois clique em Next. Digite o hostname do servidor Microsoft 365 SMTP. Post SMTP agora executará um teste de …TCP port 587. Advanced Delivery I set the FQDN as the DC where the SMTP server is installed. I set the smart host to the MX record that is assigned to our domain in DynDNS (Note: We use Barracuda to send our mail through and the MX record is set to what Barracuda has assigned us). I’ve also tried using smtp.office365.com.- In the Firewall I’ve:I'm trying to set up email on SQL Server Reporting Services with Office 365. So I have properly configured Microsft tenant and mailbox. For test on SQL machine I send an email using the Powershell ...properties.setProperty("mail.smtp.port", "8080"); Share. Improve this answer. Follow answered Apr 4, 2015 at 14:06. Swaprks Swaprks. 1,553 11 11 silver badges 16 16 bronze badges. Add a comment | 0 Try to set the property when starting JVM, for example, add -Djava.net.preferIPv4Stack=true. You can't set it when code running, as the java.net ...Log in add your Exchange Admin Center and navigate to: Mail flow > Connectors. Create a new Connector. Click on Add a connector to create a new …There is no one port number for a computer. Computers use multiple ports to accommodate different processes running on the computer. The port number in use varies on the software o...16 hours ago · Enable SMTP AUTH for specific mailboxes. Open the Microsoft 365 admin center and go to Users > Active users. Select the user, and in the flyout that appears, click Mail. In the Email apps section, click Manage email apps. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled.The USB ports on the front panel of a PlayStation 2 are used to connect peripheral accessories to the console to enhance its functionality. Just like with a computer, hard drives c...May 23, 2022 · 25端口（SMTP）：25端口为SMTP（Simple Mail Transfer Protocol，简单邮件传输协议）服务所开放的，是用于发送邮件。如今绝大多数邮件服务器都使用该协议。当你给别人发送邮件时，你的机器的某个动态端口（大于1024）就会与邮件服务器的25号端口建立一个连接，你发送的邮件就会通过这个连接传送到邮件 ...DNS: DNS 名 [smtp.office365.com] を使用します。 IP アドレスはサポートされていないため、Microsoft 365 または Office 365 サーバーには IP アドレスを使用しないでください。 ... Port: ポート 25 が必要です。 このポートがネットワークまたは ISP によってブロックさ …Jul 10, 2017 ... Hey @Glen Robinson (Member) I'm having similar issues but have your setup as above (SMTP server, email address / pwd / port 587 / TLS enabled).Jan 24, 2024 · Please verify that your SMTP server settings are correct and try again. Cause. This issue may occur if the SMTP client tries to connect to one of the following regional Exchange Online SMTP servers: smtp-apacnorth.outlook.com; smtp-apacsouth.outlook.com; smtp-emea.outlook.com; smtp-emeacenter.outlook.com; smtp-emeacentral.outlook.com; smtp ... Dec 9, 2022 · Step 1: Log in to the Microsoft Outlook mail app. Then, go to File > Account Settings > Server Settings. Step 2: Click Outgoing Mail to set up your SMTP Outgoing Server settings. Note: Don’t use a custom IP address as the mail server as they aren’t supported by Office 365.Jan 12, 2024 ... Which SMTP port should you use — port 25, port 465, or port 587? Click to learn more about Mailgun's guide to understanding SMTP ports.You can also use port 25 but Microsoft recommends port 587. If you are trying to relay then I would switch the smtp.office365.com to your O365 MX onmicrosoft record. For instance, if I were testing mail relay from inside my organization to O365 I would use something similiar to the below command.Mail. POP, IMAP, and SMTP settings for Outlook.com. If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or …Info: DEBUG SMTP: trying to connect to host "smtp.mail.gmail.com", port 587, isSSL false Severe: PWC6117: File "null" not found Here is my spring configurationSep 7, 2022 ... ... Port: 587. ... office365.com, your sign username, email address ... Office 365 SMTP Relay Options Explained || Microsoft 365 SMTP Relay- Full Detail ...This is the most common approach where you login with an email address and password that is authorized to send emails for multiple email addresses using Mailbox Delegation. The basics are: Connection Type: TLS. Server Name: smtp.office365.com. Port: 587 or 25. The account login name (email address) and password.Hey @Glen Robinson (Member) I'm having similar issues but have your setup as above (SMTP server, email address / pwd / port 587 / TLS enabled). We're installing on AWS and have checked the Office365 Admin settings for something we may be missing. Also running the Test-SMTP command returns a connection to the SMTP server but we're still seeing failures …16 hours ago · Enable SMTP AUTH for specific mailboxes. Open the Microsoft 365 admin center and go to Users > Active users. Select the user, and in the flyout that appears, click Mail. In the Email apps section, click Manage email apps. Verify the Authenticated SMTP setting: unchecked = disabled, checked = enabled.Are you planning a trip from Port Chester, NY to Marlboro, MA? If so, you may be wondering about the best way to get there and how long it will take. Fortunately, we have all the i...Jul 11, 2019 ... ... SMTP host: smtp.office365.com, port: 587 [2019-07-11T17:58:08,110] <webapi-8> INFO api - [api] api.err.SmtpSendFailed: /api/s/default/cmd/cfgmgr.I'm having trouble configuring the SMTP settings for sending mail using javax.mail (1.4.4) through Office365, so I thought I'd post the properties here for others.SMTP Address: smtp.office365.com: SMTP Port: 587 (with TLS) Authentication: Required: SSL Protocol: Off: TLS Protocol: On: …Set the RECEPTION PROTOCOL to SMTP; Set the MAX. RECEPTION EMAIL SIZE to what you need 2MB is the default; As you can see in the screen shot I have set mine to 10MB ; Ensure the EMAIL STORAGE IN SERVER is set to OFF; Set the SMTP SERVER NAME to SMTP.OFFICE365.COM; Set the SMTP PORT NO. to 587. This is …Are you planning a cruise vacation from the beautiful city of Seattle? If so, it’s important to consider your transportation options once you arrive at the Seattle cruise port. Ren...Apr 28, 2023 · Ensuite, cliquez sur l’option Gérer les applications de messagerie. Comment ouvrir les réglages SMTP dans le centre d’administration de Microsoft 365. Cochez la case pour SMTP authentifié dans la liste des options. Ensuite, cliquez sur le bouton Enregistrer les modifications en bas. Replied on January 8, 2017. If you’d like to manage your Outlook account using an email app, you’ll need to set up your POP3 or SMTP server and port settings in your email …Log in add your Exchange Admin Center and navigate to: Mail flow > Connectors. Create a new Connector. Click on Add a connector to create a new …In today’s fast-paced business environment, efficiency and productivity are key factors in achieving success. One tool that has revolutionized the way businesses operate is Office3...3. The Terminal app will open. For Linux users, utilize the Ctrl+Alt+T keyboard shortcut to access the Linux Terminal. Once you successfully access your device’s command-line interface, run the telnet command in the Command Prompt or Terminal window to …smtp.office365.com – Failed to get initial SMTP Response. If something on the client-side is blocking communications, such as a hardware or software firewall, or anti-virus, then it may be that a TLS connection is established, but then trying to read the 1st message from the server gets blocked. When this happens, the contents of the ...I'm having trouble configuring the SMTP settings for sending mail using javax.mail (1.4.4) through Office365, so I thought I'd post the properties here for others.In today’s fast-paced business world, productivity is key to success. With the advent of technology, there are numerous tools available to help streamline workflows and enhance eff...... newSmtp(useSsl = false, debug=true, sslContext = ctx) smtpConn.connect("smtp.office365.com", Port 587) #smtpConn.connect("smtp.gmx.net", Port 587) smtpConn....Hi all, Trying to get a third party app to relay a report to several email addresses every night. I am using the mydomain-com.mail.protection.outlook.com (which is my mx record and is working to send and receive emails through Office365 with the current user). When I test it with Powershell, it is unable to resolve this address, so unable to relay from my Server 2016 …
Apr 16, 2019 ... Port: 587; Click Continue. I know this is the same issue that an other fellow comrade had, so the post is fairly simillar. However, even with .... Best notes app
Port: Port 587 (recommended) or port 25 is required and must be unblocked on your network. Some network firewalls or ISPs …If you're trying to add your Outlook.com account to Outlook or another mail app, you might need the POP, IMAP, or SMTP settings. You can find them below or by viewing them in your Outlook.com settings. Outlook and Outlook.com may be able to detect your account's mailbox settings automatically, but for other non-Microsoft accounts, you may need ... Ha Outlook.com fiókját szeretné hozzáadni Outlook vagy egy másik levelezőalkalmazáshoz, szükség lehet a POP-, IMAP- vagy SMTP-beállításokra. Az alábbiakban vagy a Outlook.com beállításai között tekintheti meg őket. Outlook és Outlook.com képes automatikusan észlelni a fiók postaláda-beállításait, de más, nem ... Port: Port 587 (recommended) or port 25 is required and must be unblocked on your network. Some network firewalls or ISPs …May 21, 2020 · Resource account in Office 365 means the room and equipment mailbox created in Office 365 admin center. In most of cases smtp authentication issue is related to network, firewall settings, here’s a list Office 365 URLs and IP address ranges, make sure IP and traffics are not blocked. On the other hand, we shouldn’t neglect the potential ... Dec 9, 2022 · Step 1: Log in to the Microsoft Outlook mail app. Then, go to File > Account Settings > Server Settings. Step 2: Click Outgoing Mail to set up your SMTP Outgoing Server settings. Note: Don’t use a custom IP address as the mail server as they aren’t supported by Office 365.Contact your device manufacturer to confirm that it supports TLS version 1.0 or above. If you are using SMTP AUTH client submission then try Option 3: Configure a connector to send mail using Microsoft 365 or Office 365 SMTP relay to check this issue. For your reference: Fix issues with printers, scanners, and LOB applications that send …With port: 465 (SMTP Protocol), you can try enable ssl via properties: "mail.smtp.ssl.enable": true. mail.smtp.ssl.enable: If set to true, use SSL to connect and use the SSL port by default. Defaults to false for the "smtp" protocol and true for the "smtps" protocol. Using spring boot, add properties to application.yml: mail: ...Oct 9, 2019 · 4. To send email using the Office365 smtp server, the "from" user and the "host" user must be the same. So I added this setting in Django in order to send email to the admins: SERVER_EMAIL = EMAIL_HOST_USER. Share. Improve this answer. Follow. edited Oct 18, 2019 at 15:36. answered Oct 18, 2019 at 15:30. Apr 8, 2021 · In doing this, it seems they have somehow blocked my application from sending emails through the SMTP server under their users. Here is the basic sample of my code. using (SmtpClient client = new SmtpClient ("Smtp.office365.com", 587)) {. client.EnableSsl = true; client.UseDefaultCredentials = false; client.Credentials = new NetworkCredential ... outlook.office365.com. Username. The email address you want to set up. [email protected]. Port. The port number your incoming mail server uses. Most …Feb 21, 2023 · While no longer supported, our servers still allow clients to use those older versions of TLS when connecting to the SMTP AUTH endpoint (smtp.office365.com). In 2022, we plan to completely disable those older TLS versions to secure our customers and meet those security and compliance requirements. However, due to significant usage, ….