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Case with Office365

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Posts: 12
Joined: Wed Feb 18, 2015 10:15 am

Case with Office365

Postby rgawron » Tue Aug 22, 2017 11:45 am

Hi Guys !

My case:
I have server with VestaCP but I want use one mailbox on office365.
In vesta I add mailbox with forward to office365 personA@example.com > personA@internal.office365.domain.com
Now I get email in office365 and this is work but problem is in send to other domain on server with vesta (example2.com) or the same domain (example.com)

If i try send to other domain (example2.com) on this server I get return message :
550 5.0.350 Remote server returned an error -> 550 smtp auth requried

And in vesta I see:
2017-08-22 13:22:43 SSL_write: (from mail-eopbgr20074.outbound.protection.outlook.com (EUR02-VE1-obe.outbound.protection.outlook.com) []) syscall: Connection reset by peer
2017-08-22 13:25:22 dovecot_login authenticator failed for ( []: 535 Incorrect authentication data
2017-08-22 13:30:22 SMTP command timeout on connection from ( []

What can I do to make this configuration work?
id some of you try to combine veste and office365 with one domain ?

Posts: 174
Joined: Thu Mar 27, 2014 7:35 am

Os: Debian 9x
Web: nginx + php-fpm

Re: Case with Office365

Postby mephivio » Fri Nov 03, 2017 8:41 am


did you find any solution ?

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