Hi friends,
on a Debian Jessie and Postfix 2.11.x,
where DNS configuration seem fine, infact if I shutdonwn the primary
email server, the correspondence is delivered to the second correctly.
where SERVER1 is "the.backed-up.domain.tld"
where SERVER2 is "the backup MX)
My point is to understand why Postfix (on MX backup) store email into
mailbox and does not queue them.
It seems to me that the essential parameter is:
/relay_domains = . . . the.backed-up.domain.tld ------------>
(server1)/
and then:
mydestination = server2, localhost.server2, localhost
as described on:
http://www.postfix.org/STANDARD_CONFIGURATION_README.html#backup
But nevertheless it does not queue messages but always registers them
within INBOX.
I'm using MySQL for:
virtual_mailbox_domains =
mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_alias_maps =
mysql:/etc/postfix/mysql-virtual-alias-maps.cf,mysql:/etc/postfix/mysql-email2email.cf
smtpd_sender_login_maps =
mysql:/etc/postfix/mysql-email2email.cf,mysql:/etc/postfix/mysql-virtual-alias-maps.cf
And into "virtual_mailbox_domains" also appears in the list
the.backed-up.domain.tld
So I've change "virtual_mailbox_domains" from MySQL to hash (and
postconf it) and excluding "the.backed-up.domain.tld" domain, but with
no luck.
Do you know how I could ascertain the reasons of this strange (for me)
behavior?
If you like to see my configuration files (main.cf) I've also posted
here its two minimal configuration:
SERVER1: https://pastebin.com/wVaqxj2i
SERVER2 (backup MX): https://pastebin.com/2mYBGvCN
and for more:
/etc/postfix/mysql-virtual-mailbox-domains.cf:
https://pastebin.com/7Wy1JrAS
/etc/postfix/mysql-virtual-mailbox-maps.cf:
https://pastebin.com/jSdX4bTu
/etc/postfix/mysql-virtual-alias-maps.cf: https://pastebin.com/L0eAYxPG
/etc/postfix/mysql-email2email.cf: https://pastebin.com/2vRGFJy7
Please give me a useful suggestion I'm going crazy! :-)
many thanks!
Davide
