I recently tried setting up a mail server to be able to send mail for the websites I host with apache.
At first I tried to work with exim but I was overflown with error messages and mails I tried to send were rejected for most destination. I think only Gmail accepeted mails sent with exim but they went to spam.
I finally decided to change and start using Postfix which is said to be easier to configure for my needs.
I followed basic configuration steps and I tried a simple mail send but the same thing occured.
Jan 4 11:43:45 sd-79356 postfix/qmgr[29420]: 374A1A4D72: from=<[email protected]>, size=361, nrcpt=1 (queue active)
Jan 4 11:43:45 sd-79356 postfix/smtp[29427]: 374A1A4D72: to=<[email protected]>, relay=mx1.hotmail.com[65.54.188.94]:25, delay=0.67, delays=0.07/0/0.45/0.15, dsn=5.0.0, status=bounced (host mx1.hotmail.com$
Jan 4 11:43:45 sd-79356 postfix/smtp[29427]: 374A1A4D72: lost connection with mx1.hotmail.com[65.54.188.94] while sending RCPT TO
Jan 4 11:43:45 sd-79356 postfix/cleanup[29425]: DBBB1A4D75: message-id=<[email protected]>
Jan 4 11:43:45 sd-79356 postfix/bounce[29428]: 374A1A4D72: sender non-delivery notification: DBBB1A4D75
And for Gmail address, the message is sent, but goes to spam.
I know this is a quite recurring questions and I think I've read most of posts on SO, SF or other forums but nothing solved my problem.
The last change in configuration I tried after that is setting up TLS after I read this post, but unfortunately it didn't change anything to my problem, same errors.
I forget to mention I've checked dozen times if my server wasn't blacklisted or reported as spammer, which could explain the problem and obvisouly there's no such issue, so please don't tell me my problem is probably that (there's always someone who says to do that check in similar questions, so don't waste your time if you have nothing better to suggest).
Last point, my goal is to be able to send mail for several websites hosted in Apache Virtualhosts, this means I will need several "sender" outgoing addresses and I can't just write directly in configuration the outgoing address name.
Here is my config /etc/postfix/main.cf
:
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no
append_dot_mydomain = no
readme_directory = no
# What I added to use TLS support, which doesn't solve the problem
smtpd_use_tls=yes
smtpd_tls_security = may
smtpd_tls_key_file = /etc/postfix/tls/smtpd.key
smtpd_tls_cert_file = /etc/postfix/tls/smtpd.crt
smtpd_tls_CAfile = /etc/postfix/tls/cacert.pem
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
smtpd_tls_session_cache_timeout = 3600s
tls_random_source = dev:/dev/urandom
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_use_tls = yes
smtp_tls_security_level = may
smtp_tls_loglevel = 1
# till here
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
myhostname = sd-xxxxx.dedibox.fr
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = xxx.xxx.xxx.xxx.online.net, sd-xxxxx.dedibox.fr, localhost.dedibox.fr, localhost
relayhost =
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
What I get in the received mail with gmail :
Received: from sd-xxxxx.dedibox.fr ([xxx.xxx.xxx.xxx])
by mx.google.com with ESMTPS id 74si69449965wmm.7.2016.01.04.03.15.17
for <[email protected]>
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Mon, 04 Jan 2016 03:15:18 -0800 (PST)
Received-SPF: neutral (google.com: xxx.xxx.xxx.xxx is neither permitted nor denied by best guess record for domain of [email protected]) client-ip=xxx.xxx.xxx.xxx;
Authentication-Results: mx.google.com;
spf=neutral (google.com: xxx.xxx.xxx.xxx is neither permitted nor denied by best guess record for domain of [email protected]) [email protected]
Received: by sd-xxxxx.dedibox.fr (Postfix, from userid 0)
id B5DA5A4D78; Mon, 4 Jan 2016 12:14:47 +0100 (CET)
This caught my eye:
Are you sure your ISP hasn't blocked outgoing SMTP? Try to
telnet mx1.hotmail.com 25
to see if you're able to connect in the first place.