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Qlkt
07-22-2020, 03:56 PM
Good day All,

I have a concerning error on hand, my PABX is no longer sending emails via Office365.
It has been working for a few months, however it just stopped.
Has anyone else experienced this as well?

See error below.

Connecting to server smtp.office365.com on port 587

<-- 220 BL0PR02CA0090.outlook.office365.com Microsoft ESMTP MAIL Service ready at Wed, 22 Jul 2020 19:51:15 +0000

--> EHLO UC80.epygi-config.loc

<-- 220 BL0PR02CA0090.outlook.office365.com Microsoft ESMTP MAIL Service ready at Wed, 22 Jul 2020 19:51:15 +0000
250-BL0PR02CA0090.outlook.office365.com Hello [24.172.77.170]
250-SIZE 157286400
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-STARTTLS
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 SMTPUTF8
--> STARTTLS
<-- 220 2.0.0 SMTP server ready


--> EHLO UC80.epygi-config.loc

<-- 250-BL0PR02CA0090.outlook.office365.com Hello [24.172.77.170]
250-SIZE 157286400
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-AUTH LOGIN XOAUTH2
250-8BITMIME
250-BINARYMIME
250-CHUNKING
250 SMTPUTF8
--> AUTH LOGIN
<-- 334 UGFzc3dvcmQ6

--> NDMzNUNMVG5jIQ==

email: FATAL: Smtp error: 334 UGFzc3dvcmQ6
535 5.7.3 Authentication unsuccessful [BL0PR02CA0090.namprd02.prod.outlook.com]

haqoph
08-21-2020, 02:14 AM
Hello Qlkt,

Your best bet is contacting Microsoft for this one.

The only other thing I can tell is I have seen the same error using Gmail. The problem was Gmail was scanning the email accounts periodically and force disabling the “Allow less secure” option (which they provide but do not like). Perhaps it is the same issue here.

Regards,
Hagop

Qlkt
08-21-2020, 11:11 AM
Hello Qlkt,

Your best bet is contacting Microsoft for this one.

The only other thing I can tell is I have seen the same error using Gmail. The problem was Gmail was scanning the email accounts periodically and force disabling the “Allow less secure” option (which they provide but do not like). Perhaps it is the same issue here.

Regards,
Hagop

Thank you Hagop,

I will see if I can get a hold of Microsoft's support team.
I am now sitting with two units that has the same problem.

Really annoying.

But we will get a way around it.