On 05/19/2014 09:56 AM, Sergio Durigan Junior wrote: > I am not exactly sure, but I wanted to try "fixing" this and see if > things got better. The real problem is Google/Gmail tagging the mailing > list messages as Spam, but since the headers are fine, the cause must be > something else.
My experience is that goggle sometimes will stop tagging emails as spam if they have a valid dkim signature. This probably means either: 1) rewriting the from to be your local mailman server and signing the outbound message with dkim OR 2) passing through any valid DKIM signature, which means running a recent version of mailman and avoid adding any headers/footers which would break the signature. OR 3) possibly having no DKIM signature at all (better than having a signature which fails verification) If there is a dkim signature and it fails google will treat it as spam Goggle and the other various FREEMAILs maintain a rating of the credibility of email coming from your mailserver. DKIM signing (with a signature that will verify correctly) will increase your rating. I was getting messages like the following from gmail and they stopped when I implemented DKIM signatures (must be a keysize of at least 1024): Jan 21 16:36:06 myserv postfix/smtp[5374]: 68972108248: host gmail-smtp-in.l.google.com[74.125.142.26] said: 421-4.7.0 [1.2.3.4] Our system has detected an unusual rate of 421-4.7.0 unsolicited mail originating from your IP address. To protect our 421-4.7.0 users from spam, mail sent from your IP address has been temporarily 421-4.7.0 blocked. Please visit http://www.google.com/mail/help/bulk_mail.html 421 4.7.0 to review our Bulk Email Senders Guidelines. ih5si10430009icb.36 - gsmtp (in reply to end of DATA command) You may also benefit from using DMARC (probably not technically, but politically). You may not be doing bulk mailings, but the information here may be helpful: https://support.google.com/mail/answer/81126 Also you can try things like https://duckduckgo.com/?q=gmail+flags+my+mail+as+spam&t=canonical <https://duckduckgo.com/?q=gmail+flags+my+mail+as+spam&t=canonical> Also check http://multirbl.valli.org/ to make sure your mail server is not on any DNS blocklists. Nataraj ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org