SMTP Not Working

[BillP]

For some reason SMTP configuration is not working for me. I am using Microsoft Office 365 and test mail keeps failing

Can any one please help

[BillP]

Hi,

Have you reviewed Schneider Electric FAQ FA164769? The FAQ discusses configuring email with NMCs. 

When I have tested I have used

smtp.office365.com

Port: 587

Encryption: SSL/TLS = Always

[BillP]

Thanks for your reply.

I also used the same configuration, but still getting the same error.

We are using Mimecast as Email Security Gateway and our MX record is pointed to "eu-smtp-inbound-1.mimecast.com". Hence  I have tried below configuration as well

SMTP : eu-smtp-inbound-1.mimecast.com

Port : 25

SSL/TLS : Always

I am still getting the error : 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [DB6PR06CA0036.eurprd06.prod.outlook.com]

[Anonymous user]

I'm having the same issue and we also use Mimecast.

Except im getting a 535 5.7.3 Authentication Unsuccessful and the credentials are 100% valid...

[Anonymous user]

Direct Connect worked up until after 12/20/2018 so something changed with Office 365. It would PROBABLY be advantageous of the VENDOR to figure out WHY so their CUSTOMERS can fix the issue....

[Anonymous user]

Jasim, did you ever get this working?

On 3/28/2019 3:51 AM, Jasim said:

For some reason SMTP configuration is not working for me. I am using Microsoft Office 365 and test mail keeps failing

Can any one please help

[Anonymous user · Accepted solution]

After a year of fighting this I made a Gmail account and tested it.. found that the SMTP server settings hold absolutely no ****ing bearing on what the recipients pull and is actually a useless spot.

I went to the recipient which showed the same data as the server, cleared it and redid it. Tested worked...

What a joke..