I've been using qmail since the late 90s and am a huge fangirl (yes, I think I'm the only girl on here, lol). I just wanted to say after installing from binaries years ago I found QMT and breathed a sigh of relief. What a timesaver! I used it on my last mailserver 5 years ago, but found I needed to make a move and wanted to see if I could get it running on Centos7. Thanks to the awesome script from Eric, the install was a breeze! As he warned, it hung a while on the ClamAV install, but other than that it ran smoothly. My only issue was figuring out how to install my new SSL cert and remove the self-signed one.
Finally got that figured out and everything is working cleanly. SMTP is a bit slow to connect, so if anyone has a super quick solution for that, it would be great. I remember I had the same issue when I set up my previous server, but of course I have no clue now how I solved it. :) I already changed the Spamdyke setting for delaying the greeting to ZERO and that helped with testing the setup through CheckTLS.com (everything got a green), but it still takes 3-4 seconds to process. I don't know if that can be changed based on everything that's going on though? I also have DKIM working smoothly. Emails are being signed and once I changed the encryption to 1024 for the public key, Google gave it a "pass", whereas when I first tested, it gave a "weak-key" response. (Had to turn off DKVERIFY for incoming because it was bouncing emails). By the way, I'm using one of the free SSL certs from Let's Encrypt (lets encrypt.org). Just letting everyone know the cert worked in case you were thinking of trying it.
