Can we please change how our Trac notification emails are sent? SendGrid is absolutely atrocious. I currently have six of their shared IPs whitelisted on our mail server to allow these notifications through, because they would otherwise be blocked by the many many many blacklists that SendGrid is always on for sending spam. Here are those IPs, and the number of blacklists that they're on right now (it fluctuates).
Six blacklists: https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a167.89.100.130 https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a167.89.100.175 Four blacklists: https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a167.89.100.176 Three blacklists: https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a167.89.100.129 https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a168.245.72.219 https://mxtoolbox.com/SuperTool.aspx?action=blacklist%3a198.21.6.101 Those are all IPs that are actively sending Trac notifications. There are two problems with this: 1. I don't want to be whitelisting spammers on our mail server. 2. Every once in a while, SendGrid will pick a new IP to start sending Trac notifications from, and the only way I know to whitelist them is that I start missing important notifications. It's impossible to do worse than this with a five-minute outgoing-only local postfix instance. You get a PTR record for the server, make sure it's not on any blacklists, and pick one poor sucker to receive the "bounced" mail (when someone's Trac email address stops working, we need to know and disable it). You might get rate-limited by Microsoft/Gmail at first (what kind of volume are we talking about?), but those notifications won't get lost forever, and that problem eventually corrects itself unlike this one. And it's free. Here's the entire postfix main.cf for such an instance: compatibility_level = 2 inet_protocols = ipv4 home_mailbox = .maildir/ myhostname = hostname.example.com smtp_skip_5xx_greeting = no unknown_address_reject_code = 550 fast_flush_domains = error_notice_recipient = postmas...@example.com Then postmas...@example.com would go to whoever is in charge of the server. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/97bf2d72-6793-afc8-ef86-3a88acf07596%40orlitzky.com.
