On Mon, 21 Sep 2020 10:54:19 -0700 (PDT) Mark Allyn <[email protected]> wrote:
> Folk: > > I have a server on Linode for my web server, which is www.allyn.com > > I then rented another Linode server to try to do my own email (just > me, [email protected]) no one else as this is for me, not a business or > group. I used Linode DNS to call that machine mail.allyn.com and then > set up the reverse DNS so that it's IP would point back to > mail.allyn.com and not to the Linode issued name. Linode allows me to > do this for both IPv4 and IPv6. I am guessing the Digital Ocean, AWS, > OVH and the others are most likely similar in handling DNS for their > customers. > > Note that for new customers, Linode will block port 25 to reduce risk > of outgoing spam. You need to file a support ticket for your server > to enable the mail ports. > > I then install Postfix and Spamassasin (no listservs, though). And > then I tried to follow all of the suggestion to lock this down. No > POP or IMAP. I would log in using ssh and use the text based email > client on the machine. > > I set up the certification and thoroughly checked the emails coming > from me to another email address that I had and saw that all of the > headers SPF, DKIM, etc were there and looked okay. > > Everything went well until Spamhouse, or whatever their spelling > blocked me. It turns out that Spamhouse gets mad at you if you use > and IPv6 address on Linode because Linode gives each of us one Ipv6 > address and not an IpV6 block. > > Then I found out that Comcast apparently blocks anything from Linode > (I don't have Comcast email, so I had to find that out from someone > on Reddit). I am guessing they got made at Linode because one Linode > customer did not set up thing right and ended up being what's called > an email relay. > > Opinions on Reddit go through the entire range of Linode has a bad > spam reputation to Comcast does not know what it's doing. > > So, I decided that the effort is not enough. I shut down email and > then signed up with Google's gmail. > > So far, since this is just me for my personal email, Google does fill > the bill. > > This has been my experience. > > Thank you > > Mark Allyn > Bellingham, Washington > You setup your mailserver wrong. You need to have a /64 allocated to your mail server. And especially with VPS providers, you need to 'cleanse' a IPv4 address before you start using it. It's just a matter of looking the ip up on mxtoolbox and requesting a delisting from any DBLs. Or looking in your log for reject messages saying which DBL your listed in. -- ________________________________________ / Kiss me, Kate, we will be married o' \ | Sunday. | | | | -- William Shakespeare, "The Taming of | \ the Shrew" / ---------------------------------------- \ \ /\ /\ //\\_//\\ ____ \_ _/ / / / * * \ /^^^] \_\O/_/ [ ] / \_ [ / \ \_ / / [ [ / \/ _/ _[ [ \ /_/ _______________________________________________ PLUG: https://pdxlinux.org PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
