Hi @jws ,
Thanks for raising this to us. We did an article that you may find helpful, this will guide you on how to fix this issue.
Please see link below.
Cannot Send Email Rejected by the Server/Banned from using SMTP
Let us know how it will go and should you require further assistance.
Regards,
@jws wrote:
Hi. I can't send emails. I get
554 5.7.1 [TPG-S02] [09E7apvQ017516] Message rejected as it appears to be spam. Use SMTP AUTH, PostOffice, or contact the Postmaster Team <postmaster@tpg.com.au>
I am using Microsoft Outlook version 2009
On Windows 10.
