Hi
Over the last week or so, every time I send an email to a t-online.de address, it bounces back.
To give you an example:
[email protected]; Failed; 5.1.2 (bad destination system address)
Remote MTA mx01.t-online.de: network error
- SMTP protocol diagnostic: 554 IP=65.20.50.6 - None/bad reputation. Ask your postmaster for help or to contact [email protected] for reset. (NOWL)
Any help would be welcome.
Thanks.
