Oh one more thing that is a total guess on my part and I have no idea whether it would help or not... but it couldn't hurt: implement IPv6 on your domain and publish a AAAA record for your MX (with the appropriate reverse DNS).
My wild-ass reasoning: a lot of spam-bots are home machines that still do not have IPv6 addresses, whereas most serious non-spam servers almost certainly would publish them. Perhaps Google's filtering recognizes this and negatively scores a lack of IPv6 on the originating server and/or domain. I do note that most of the connections inbound to my systems from Google are IPv6 connections so Google definitely looks for AAAA addresses. Regards, Raman On 07/26/2015 12:46 PM, Raman Gupta wrote: > And: > > 3) Make sure the reverse DNS for the IP you use to send mail is > configured to point to your own domain and not your VPS provider's domain: > > dig -x <ipaddress> > > Regards, > Raman > > On 07/26/2015 12:40 PM, Raman Gupta wrote: >> I have a similar setup and don't (as far as I know) have any issues. >> Two things that will likely help you a lot: >> >> 1) Setup DMARC (SPF+DKIM) for your domain: >> https://support.google.com/a/answer/2466580?hl=en. >> >> 2) Register/verify your domain(s) at https://postmaster.google.com/u/0/ >> >> HTH! >> Regards, >> Raman >> >> On 07/26/2015 12:16 PM, Daniele Nicolodi wrote: >>> Hello, >>> >>> I apologize in advance because my problem is not strictly related to >>> postfix, but I don't know another mailing list with helpful people with >>> enough knowledge of the of the subject. >>> >>> I have my personal emails handled by my own setup hosted on a virtual >>> private server. Since a while (I believe it is now a year or so) Gmail >>> classifies all my emails as spam. I believe I correctly setup SPF and >>> DKIM, and the headers in the messages as received on the Gmail side seem >>> to suggest that Gmail correctly validates both of those checks. However, >>> this does not not seem to help in making them going through. >>> >>> The volume of email I send through this server is extremely low (it >>> handles only my personal email and I'm the only active user). >>> >>> Currently I'm able to send emails to my address @gmail.com from the >>> email address I'm currently using without having them classified as >>> spam, but not from any email address having a different local part. I >>> believe this is because my @grinta.net email address is white listed for >>> my @gmail.com email address. >>> >>> Of course, Google does not care about the issue. >>> >>> There is something I can do to have my emails accepted by Google? >>> >>> Thank you very much. >>> >>> Cheers, >>> Daniele >>> >
