I occasionally send out bulk mail from my site to customers. I had increasing problems using shared hosting, since other peoples’ sites would get hacked, making it harder for my legitimate mail to avoid spam filters. I finally moved to a VPS recently based on a recommendation from Dreamhost, but if anything the problem is worse now. In particular everything going to Gmail gets auto-flagged as spam, so I spent some time going through Google’s recommendations for avoiding the spam filter, but it doesn’t seem to have helped. I see this in the header:
Received-SPF: softfail (google.com: domain of transitioning [email address] does not designate [ip address] as permitted sender) client-ip=[ip address];
spf=softfail (google.com: domain of transitioning [email address] does not designate [ip address] as permitted sender) smtp.mail=[email address]
With [email address] and [ip address] being the actual addresses, of course. So, does anyone know if there’s something I should be configuring somewhere that might help?