Pay for Sendgrid (100 / day for free is not enough) VS set up your own email server?

For own email server, do you not get flagged a lot as spam ?

  • BentiGorlich@thebrainbin.org
    1·
    1 year ago

    Well I did set one up today and the mails land in the spam folder for GMX, GMail and Microsoft (@live.de), although I set up SPF, rDNS, and DKIM. I have to take a look at how to setup DMARC, beacause my domain hoster doesn’t allow free configuration of the TXT entries, you have to use templates and there isn’t one for DMARC

    • oranki
      2·
      1 year ago

      Couple things that I’ve found out,

      • Gmail seems to need your server to have IPv6 with PTR, even if the mail is sent over IPv4
      • Even a DMARC record with no ruf or rua helps lower the spam score
      • For Outlook you need to send some mail to yourself or someone else and mark the messages as not spam manually for a while
      • MS365 will even put mails from Gmail to spam initially
      • Some TLDs like .xyz will go to spam even if everything is set up perfectly
      • Outlook also seems to cache DNS quite long, you may need to wait a day for changes to propagate
      • A recently registered domain will land in spam more easily, if it has been registered for a while it also seems to help

      If you’re not already familiar with these, https://mxtoolbox.com/SuperTool.aspx (write smtp:your.mx.record is a good tool, and I’ve also used https://www.mail-tester.com/. Mxtoolbox blacklist check is also good.

      I hate it that spammers have made hosting email such a hassle. Hope you get stuff running!

      • hernik@le.mnau.xyz
        1·
        1 year ago

        I don’t have an IPv6 PTR and I send mails through a .xyz domain and everything still works at least when sending to a gmail inbox.

        • oranki
          1·
          1 year ago

          Well, in that case Gmail doesn’t seem to require the PTR6 :)

          None of these are absolute, since determining spam is based on a scoring system