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5 questions with no upvoted or accepted answers
1 vote
0 answers
514 views

How to use DNS alias as sender address for sendmail

I have the following setup: My Ubuntu (14.04) server gets a host name from DHCP (real.host.de) and there is a DNS alias (alias.host.de) that points to this host name. Now I want to configure ...
fyaa's user avatar
  • 111
1 vote
0 answers
1k views

Sendmail local domain relay

Sendmail on webserver.mydomain.com is sending all emails properly except email addressed to [email protected]. mydomain.com's mail is not handled locally and mx records are configured to point to ...
Eaten by a Grue's user avatar
0 votes
0 answers
26 views

Postfix delivers messages locally despite configuration for discovering external agent

A small node operates several web applications attached to a domain. The same domain is used for mailboxes, hosted off site by a commercial service. On the name server operated by the registrar, A, ...
brainchild's user avatar
0 votes
0 answers
144 views

Change mail from header in sendmail

We have two separate RTs (request trackers) configured on one server. They both are configured to send the emails through sendmail. We are trying to configure now SPF and DMARC records for these DNS ...
Julia Mala's user avatar
0 votes
0 answers
72 views

hostname -f shows reverse DNS twice

On a Debian 4.7.2-5, I got some problems sending mail correctly with sendmail. It appears that ELHO sender is different from domain name. When I ask machine for its hostname FQDN : hostname -f I got ...
nbonniot's user avatar
  • 103