I have 2 domains registered and MX records set up and pointing at the same server. The output from this tool https://mxtoolbox.com/SuperTool.aspx is
10 mail.mydomain.club IP 5 min 10 mail.myotherdomain.com sameIP 5 min
so thats is working.
I followed this guide on setting up postfix with dovecot and MariaDB.
Every example.com is replaced with myotherdomain.com and hostname my machine is mydomain.club (If I change it,
/etc/resolv.conf gets reset and I start sending mails as
hostname.mydomain.club, so I left that as it is.)
My problem is that email services, such as gmail, are saying that the email I send isn't encrypted.
This are ssl entries in my /etc/postfix/main.cf file that I think are relevant:
smtpd_use_tls = yes smtpd_tls_cert_file = /etc/pki/tls/certs/myotherdomain_com.crt smtpd_tls_key_file = /etc/pki/tls/certs/server.key
I got PositiveSSL certificate
myotherdomain_com.crt from namecheap, when I registered a myotherdomain.com,
server.key was generated when I issued
openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr
When I send an email with
mutt -f . command, while being in
/home/vmail/myotherdomain.com/sales/Maildir the email is send from
firstname.lastname@example.org and gmail complains that it isn't encrypted. If I use
EMAIL="email@example.com" mutt, gmail still complains that email isn't encrypted. myotherdomain.com uses https successfully while mydomain.club uses plain http and also works as desired.
I have no idea why my encryption doesn't work. Can you help me out? Will post any additional files you need. I am running centOS 7.
Message in gmail:
mydomain.club did not encrypt this message
I don't know what it says
mydomain.club, because I wanted to send mail as
myotherdomain.com for which I bought and installed certificate
/var/mail/maillog file when I try to send mail using
myotherdomain.com. Note that
mydomain.club still appears in the log file.
Feb 11 22:26:37 mydomain postfix/pickup: 550544A59: uid=0 from=<root> Feb 11 22:26:37 mydomain postfix/cleanup: 550544A59: message-id=<20170211222637.GA19507@mydomain.club> Feb 11 22:26:37 mydomain postfix/qmgr: 550544A59: from=<firstname.lastname@example.org>, size=461, nrcpt=1 (queue active) Feb 11 22:26:38 mydomain postfix/smtp: 550544A59: to=<email@example.com>, relay=gmail-smtp-in.l.google.com[2607:f8a0:400e:c04::1b]:25, delay=1.1, $ Feb 11 22:26:38 mydomain postfix/qmgr: 550544A59: removed