<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">FWIW, I use AWS SMTP Account for my business account instead of my server for the benefit of SES features. No problems with that and App-specific (M-M) PW. <div><br></div><div>M$ 365… Ugh. <br><br>Henry<br><div dir="ltr">- -<div>Please excuse the tttapping errors... <div>Sent from my iPhone<div>C/T (954) 253-4125</div><div>Henry M. Seiden</div><div>Techworks Pro</div></div><div><br></div></div></div><div dir="ltr"><br><blockquote type="cite">On Mar 6, 2022, at 11:03, Alexandre Takacs <a.takacs@augicom.ch> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p dir="auto">I am also having various issues with MM & SMTP…</p>
<p dir="auto">I eventually managed to make it work by <em>not</em> using OAUTH2, which is supported but not a 365 default. It would have admin right on your tenant it is pretty simple to change.</p>
<p dir="auto">That being said it would seem that your account is not authorised -at all- for SMTP sending, as per <a href="https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission" style="color: #3983C4;">https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission</a></p>
<p dir="auto">On 6 Mar 2022, at 12:41, John Swinbank wrote:</p>
</div><div class="plaintext" style="white-space: normal;"><blockquote style="margin: 0 0 5px; padding-left: 5px; border-left: 2px solid #777777; color: #777777;"><p dir="auto">Hello,</p>
<p dir="auto">I'm trying to use MailMate r5875 with Office365 using OAuth2 to authenticate for both IMAP and SMTP.</p>
<p dir="auto">IMAP works fine. When I use SMTP, the server refuses MailMate's attempt to authenticate as follows:</p>
<p dir="auto"> 11:17:22 Retrieving password (keychain or user request)
<br>
11:17:22 C: AUTH XOAUTH2 ••••••••••
<br>
11:17:27 S: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Tenant. Visit <a href="https://aka.ms/smtp_auth_disabled" style="color: #777777;">https://aka.ms/smtp_auth_disabled</a> for more information. [AM4PR0701CA0035.eurprd07.prod.outlook.com]
<br>
11:17:27 Error: Unexpected return code 535 (expected 235): “5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Tenant. Visit <a href="https://aka.ms/smtp_auth_disabled" style="color: #777777;">https://aka.ms/smtp_auth_disabled</a> for more information. [AM4PR0701CA0035.eurprd07.prod.outlook.com]”.
<br>
11:17:27 Error code: 2000</p>
<p dir="auto">(There's a full log of the session at the bottom of this mail in case that's helpful).</p>
<p dir="auto">My employer has provided special instructions for configuring Evolution on Linux to work with our Office365 system. These include overriding the Tenant and Application ID settings — there's an example of what that looks like at <a href="https://urchin.earth.li/~jds/evolution-oauth2.png" style="color: #777777;">https://urchin.earth.li/~jds/evolution-oauth2.png</a>. Perhaps something similar is necessary in MailMate - is that possible?</p>
<p dir="auto">Any ideas or suggestions much appreciated!</p>
<p dir="auto">Cheers,</p>
<p dir="auto">John</p>
<p dir="auto">11:17:21 Handling request
<br>
11:17:21 Ready to run action (type: 0, retry count: 0)
<br>
11:17:21 Clearing connection to smtp.office365.com
<br>
11:17:21 Trying to connect to smtp.office365.com on port 587 (CFNetwork) with STARTTLS (required)
<br>
11:17:22 Resolved hostname (smtp.office365.com).
<br>
11:17:22 Successful connection.
<br>
11:17:22 Ready for reading.
<br>
11:17:22 S: 220 AM4PR0701CA0035.outlook.office365.com Microsoft ESMTP MAIL Service ready at Sun, 6 Mar 2022 11:17:21 +0000
<br>
11:17:22 C: EHLO [192.168.1.106]
<br>
11:17:22 S: 250-AM4PR0701CA0035.outlook.office365.com Hello [87.210.54.76]
<br>
11:17:22 S: 250-SIZE 157286400
<br>
11:17:22 S: 250-PIPELINING
<br>
11:17:22 S: 250-DSN
<br>
11:17:22 S: 250-ENHANCEDSTATUSCODES
<br>
11:17:22 S: 250-STARTTLS
<br>
11:17:22 S: 250-8BITMIME
<br>
11:17:22 S: 250-BINARYMIME
<br>
11:17:22 S: 250-CHUNKING
<br>
11:17:22 S: 250 SMTPUTF8
<br>
11:17:22 C: STARTTLS
<br>
11:17:22 S: 220 2.0.0 SMTP server ready
<br>
11:17:22 Initiating secure connection...
<br>
11:17:22 Prepare secure connection...
<br>
11:17:22 Returned (4)...
<br>
11:17:22 Protocol version: kTLSProtocol12
<br>
11:17:22 C: EHLO [192.168.1.106]
<br>
11:17:22 S: 250-AM4PR0701CA0035.outlook.office365.com Hello [87.210.54.76]
<br>
11:17:22 S: 250-SIZE 157286400
<br>
11:17:22 S: 250-PIPELINING
<br>
11:17:22 S: 250-DSN
<br>
11:17:22 S: 250-ENHANCEDSTATUSCODES
<br>
11:17:22 S: 250-AUTH LOGIN XOAUTH2
<br>
11:17:22 S: 250-8BITMIME
<br>
11:17:22 S: 250-BINARYMIME
<br>
11:17:22 S: 250-CHUNKING
<br>
11:17:22 S: 250 SMTPUTF8
<br>
11:17:22 Retrieving password (keychain or user request)
<br>
11:17:22 C: AUTH XOAUTH2 ••••••••••
<br>
11:17:27 S: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Tenant. Visit <a href="https://aka.ms/smtp_auth_disabled" style="color: #777777;">https://aka.ms/smtp_auth_disabled</a> for more information. [AM4PR0701CA0035.eurprd07.prod.outlook.com]
<br>
11:17:27 Error: Unexpected return code 535 (expected 235):
<br>
“5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Tenant. Visit <a href="https://aka.ms/smtp_auth_disabled" style="color: #777777;">https://aka.ms/smtp_auth_disabled</a> for more information. [AM4PR0701CA0035.eurprd07.prod.outlook.com]”.
<br>
11:17:27 Error code: 2000
<br>
11:17:27 Failed action (0). Reset observed read/write timeouts: 8/8
<br>
11:17:27 Handling reply
<br>
11:17:57 Handling request
<br>
11:17:57 C: QUIT
<br>
11:17:57 S: 221 2.0.0 Service closing transmission channel
<br>
11:17:57 Clearing connection to smtp.office365.com
<br>
11:17:57 Ready to run action (type: 3, retry count: 0)
<br>
11:17:57 Clearing connection to smtp.office365.com
<br>
11:17:57 Ready to run action (type: 3, retry count: 0)
<br>
11:17:57 Clearing connection to smtp.office365.com
<br>
11:17:57 Completed action (3). Observed read/write timeouts: 8/8
<br>
11:17:57 Handling reply
<br>
_______________________________________________
<br>
mailmate mailing list
<br>
mailmate@lists.freron.com</p>
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