[swinog] bluewin MX is blocking our mails

Hello everybody

We moved our equipment to a new location and a new IP range. In the first few days a lot of outgoing email where blocked from various reputation filters. In the meantime we could fix most of the issues. Phuh... ;-)

Since today morning, the bluewin MX blocks our messages again. I already requested for a statistic reset at "Cloudmark".

What's wrong with our "reputation"?

Hostname saturn.uptm.ch (mail.uptm.ch) IPv4 185.104.16.21 IPv6 2a00:f740:100::15:1 PTR should be correct SPF set for all customers domains

Thank you for any hint.

It would also be nice, if someone from bluewin could contact me offlist and provide some more information, what made our IP evil again.

Regards Markus Meier