Outgoing email is being rejected as spam

[GW1]

Hi,

When I try to send an email through outlook and there is a @TPG.com addressee I receive the following message:

Message rejected as it appears to be spam. Use SMTP AUTH, PostOffice, or contact the Postmaster Team

Al appears well if there is no tpg addressee.

Help!

[Anonymous · Accepted solution]

Hi @GW1 ,

Welcome to the community!

We did an article that you may find helpful this will guide a basic troubleshooting about SMTP Authentication issue.

Please see link below.

Cannot Send Email Rejected by the Server/Banned from using SMTP 

Let us know how it will go.

Cheers!