SPF errors when sending emails
Branislav B. asked: I setup a mail server on mail.mydomain.com. I am able to receive email. Problem occurs when i try to send an email. I have two servers: mail.mydomain.com …
Postmap returns database not found error
Dave Coventry asked: I have set up my Postfix configuration with Mysql maps, prety much as detailed here and here. I have a file at /etc/postfix/mysql-virtual-mailbox-maps.cf which contains the following: …
Postfix: What is the meaning of the non-loopback IPv6 addresses in the default value of mynetworks configuration parameter?
ARX asked: On Postfix 3.1.0, postconf -d mynetworks prints: mynetworks = 127.0.0.0/8 192.168.1.0/24 [::1]/128 [fd6f:721b:f2ec::]/64 [fe80::]/64 What do the last two elements in the list, [fd6f:721b:f2ec::]/64 [fe80::]/64 represent? They are …
POSTFIX Won't Start says: bind 0.0.0.0 port 25: Address already in use
Bruno de Goyrans asked: Sorry, I’ve read tons of related topics but didn’t get solutions for my issue. Suddenly this morning, POSTFIX did not respond. I didn’t do anything special …
Postfix not resolving MX record
pdna asked: Log to=<[email protected]>, relay=none, delay=21311, delays=21301/0.04/10/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=localdomain type=MX: Host not found OS: FreeBSD When I run the …
SquirrelMail doesn't send or receive any mail
nameless asked: I just tried to set up a mail server on my Ubutnu 14.04. The goal is to be able to send mails from [email protected] and receive mails sent …
How to mask local host name when sending emails using postfix through gmail
Sergey asked: I have a few scripts I’m running that are sending an email. I wanted to configure everything to be able to use simple mail() functions and have emails …
Prevent Postfix from accepting any emails sent by domains in "mydestination" from outside "mynetworks"
Peter Stimpel asked: On our mx’s we looked for a way to prevent those servers from receiving certain faked mails. Those faked mails come along using sender addresses my servers …
Should SPF added to smtpd_sender_restrictions or smtpd_recipient_restrictions?
kittygirl asked: I am using postfix+dovecot in centos 7. I use postconf -e ‘smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination,reject_invalid_hostname,reject_non_fqdn_hostname,reject_non_fqdn_sender,reject_non_fqdn_recipient’ postconf -e ‘smtpd_sender_restrictions =reject_non_fqdn_sender,reject_unknown_sender_domain,reject_rbl_client sbl-xbl.spamhaus.org,check_policy_service unix:private/policy’ postconf -e ‘policy_time_limit = 3600s’ postconf -e ‘policy-spf_time_limit …
Accessing mail body on postfix check_policy_service event
TheStoryCoder asked: I followed postfix documentation to set up a script that I can use to write custom filters on incoming mail on the check_policy_service event and it works just …