Hello, Thanks for your comments!
> That being said it would seem that your account is not authorised -at all- > for SMTP sending, as per > https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission I have been speculating (maybe better: hoping) that since this is specified on an organization-wide basis that overriding the Tenant ID (as per instructions from my employer) might do the trick here. I've not found a way to do this in MailMate, though. Cheers, John On 6 Mar 2022, at 17:03, Alexandre Takacs wrote: > I am also having various issues with MM & SMTP… > > I eventually managed to make it work by _not_ using OAUTH2, which is > supported but not a 365 default. It would have admin right on your tenant it > is pretty simple to change. > > That being said it would seem that your account is not authorised -at all- > for SMTP sending, as per > https://docs.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/authenticated-client-smtp-submission > > > > > On 6 Mar 2022, at 12:41, John Swinbank wrote: > >> Hello, >> >> I'm trying to use MailMate r5875 with Office365 using OAuth2 to authenticate >> for both IMAP and SMTP. >> >> IMAP works fine. When I use SMTP, the server refuses MailMate's attempt to >> authenticate as follows: >> >> 11:17:22 Retrieving password (keychain or user request) >> 11:17:22 C: AUTH XOAUTH2 •••••••••• >> 11:17:27 S: 535 5.7.139 Authentication unsuccessful, >> SmtpClientAuthentication is disabled for the Tenant. Visit >> https://aka.ms/smtp_auth_disabled for more information. >> [AM4PR0701CA0035.eurprd07.prod.outlook.com] >> 11:17:27 Error: Unexpected return code 535 (expected 235): “5.7.139 >> Authentication unsuccessful, SmtpClientAuthentication is disabled for the >> Tenant. Visit https://aka.ms/smtp_auth_disabled for more information. >> [AM4PR0701CA0035.eurprd07.prod.outlook.com]”. >> 11:17:27 Error code: 2000 >> >> (There's a full log of the session at the bottom of this mail in case that's >> helpful). >> >> 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 >> https://urchin.earth.li/~jds/evolution-oauth2.png. Perhaps something similar >> is necessary in MailMate - is that possible? >> >> Any ideas or suggestions much appreciated! >> >> Cheers, >> >> John >> >> >> >> 11:17:21 Handling request >> 11:17:21 Ready to run action (type: 0, retry count: 0) >> 11:17:21 Clearing connection to smtp.office365.com >> 11:17:21 Trying to connect to smtp.office365.com on port 587 (CFNetwork) >> with STARTTLS (required) >> 11:17:22 Resolved hostname (smtp.office365.com). >> 11:17:22 Successful connection. >> 11:17:22 Ready for reading. >> 11:17:22 S: 220 AM4PR0701CA0035.outlook.office365.com Microsoft ESMTP MAIL >> Service ready at Sun, 6 Mar 2022 11:17:21 +0000 >> 11:17:22 C: EHLO [192.168.1.106] >> 11:17:22 S: 250-AM4PR0701CA0035.outlook.office365.com Hello [87.210.54.76] >> 11:17:22 S: 250-SIZE 157286400 >> 11:17:22 S: 250-PIPELINING >> 11:17:22 S: 250-DSN >> 11:17:22 S: 250-ENHANCEDSTATUSCODES >> 11:17:22 S: 250-STARTTLS >> 11:17:22 S: 250-8BITMIME >> 11:17:22 S: 250-BINARYMIME >> 11:17:22 S: 250-CHUNKING >> 11:17:22 S: 250 SMTPUTF8 >> 11:17:22 C: STARTTLS >> 11:17:22 S: 220 2.0.0 SMTP server ready >> 11:17:22 Initiating secure connection... >> 11:17:22 Prepare secure connection... >> 11:17:22 Returned (4)... >> 11:17:22 Protocol version: kTLSProtocol12 >> 11:17:22 C: EHLO [192.168.1.106] >> 11:17:22 S: 250-AM4PR0701CA0035.outlook.office365.com Hello [87.210.54.76] >> 11:17:22 S: 250-SIZE 157286400 >> 11:17:22 S: 250-PIPELINING >> 11:17:22 S: 250-DSN >> 11:17:22 S: 250-ENHANCEDSTATUSCODES >> 11:17:22 S: 250-AUTH LOGIN XOAUTH2 >> 11:17:22 S: 250-8BITMIME >> 11:17:22 S: 250-BINARYMIME >> 11:17:22 S: 250-CHUNKING >> 11:17:22 S: 250 SMTPUTF8 >> 11:17:22 Retrieving password (keychain or user request) >> 11:17:22 C: AUTH XOAUTH2 •••••••••• >> 11:17:27 S: 535 5.7.139 Authentication unsuccessful, >> SmtpClientAuthentication is disabled for the Tenant. Visit >> https://aka.ms/smtp_auth_disabled for more information. >> [AM4PR0701CA0035.eurprd07.prod.outlook.com] >> 11:17:27 Error: Unexpected return code 535 (expected 235): >> “5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled >> for the Tenant. Visit https://aka.ms/smtp_auth_disabled for more >> information. [AM4PR0701CA0035.eurprd07.prod.outlook.com]”. >> 11:17:27 Error code: 2000 >> 11:17:27 Failed action (0). Reset observed read/write timeouts: 8/8 >> 11:17:27 Handling reply >> 11:17:57 Handling request >> 11:17:57 C: QUIT >> 11:17:57 S: 221 2.0.0 Service closing transmission channel >> 11:17:57 Clearing connection to smtp.office365.com >> 11:17:57 Ready to run action (type: 3, retry count: 0) >> 11:17:57 Clearing connection to smtp.office365.com >> 11:17:57 Ready to run action (type: 3, retry count: 0) >> 11:17:57 Clearing connection to smtp.office365.com >> 11:17:57 Completed action (3). Observed read/write timeouts: 8/8 >> 11:17:57 Handling reply >> _______________________________________________ >> mailmate mailing list >> mailmate@lists.freron.com >> https://lists.freron.com/listinfo/mailmate_______________________________________________ > mailmate mailing list > mailmate@lists.freron.com > https://lists.freron.com/listinfo/mailmate _______________________________________________ mailmate mailing list mailmate@lists.freron.com https://lists.freron.com/listinfo/mailmate