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Questions tagged [opendkim]

Open source implementation of the DKIM (Domain Keys Identified Mail). The capabilities include signing and verifying DKIM signature of the email.

OpenDKIM is an open source implementation of the (Domain Keys Identified Mail) sender authentication system standardized by the IETF (RFC6376). The project started from a code fork of version 2.8.3 of the open source dkim-milter package,

OpenDKIM capabilities was including signing and verifying DKIM signature of the email. The package consists of a library that implements the DKIM service and a milter-based filter application that can plug in to any milter-aware MTA such as and .

The documentation of command line options can be found in this page.
The documentation of opendkim.conf configuration file can be found in this page.

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OpenDKIM Exited status and mysql plaintext passwords

On my VPS Debian Jessie, email server Postfix + Dovecot with user and password on MySQL, I've installed OpenDKIM, that use MySQL for keys too. If for some reason the server reboot, I can find every time the OpenDKIM service in status "active…
Davide Marchi
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OpenDKIM not signing mail sent to relay host with Ubuntu 18.04

I recently migrated a server from Ubuntu 14.04 to one running 18.04 but with the same mail setup. I simply copied over Postfix's main.cf and the contents of /etc/mail/opendkim over. The server is sending mail to a remote mail host over the LAN…
TommyPeanuts
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Centos 6.9 - DKIM - not autenticated

i have this error on postfix (Centos 6.9) May 21 17:41:48 mailer opendkim[1710]: OpenDKIM Filter v2.11.0 starting (args: -x /etc/opendkim.conf -P /var/run/opendkim/opendkim.pid) May 21 17:44:19 mailer opendkim[1710]: 347395A1DBB:…
cmansilla
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Postfix + opendkim + spamassin: messages are signed twice

I've got Postfix + spamassassin working already and I'm introducing opendkim. I'm almost there except outgoing messages are DKIM signed twice, which is not only useless but even makes them DKIM invalid. From what I gathered, the whole thing boils…
Jérôme
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Opendkim fails to start on CentOS 7 (connect to Milter service inet:localhost:8891: Connection refused)

I've got issues with OpenDKIM not starting on my CentOS 7 (with Postfix) server since an update for OpenDKIM crashed a while ago. I've tried the following: service opendkim start Then it says: Job for opendkim.service failed because the control…
Liv
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Make postfix/opendkim sign mail from all domains

So, at the moment I am signing mails from specific domains using opendkim and this works. But when I try to send mails from domains that opendkim does not know, they they are not signed. What I want to do, is to make opendkim sign all emails going…
BQffen
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OpenDkim-testkey record not found

trying this command after install opendkim and postfix opendkim-testkey -d aan-tsu.info -s default -v -v -v opendkim-testkey: checking key 'default._domainkey.aan-tsu.info' opendkim- testkey: 'default._domainkey.aan-tsu.info' record not…
AAHN
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Adding DKIM DNS record - can something go wrong?

I have a working external managed mail system for our company domain. Additionally I am currently trying to setup a second mailserver (which I have control over) for the same domain with DKIM with postfix. The externally managed main mail server…
cytopia
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Problems with signing emails with OpenDKIM

I've installed OpenDKIM to sign the outgoing emails sent from Postfix mail server following this guidelines:…
Mostafiz Rahman
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postfix/opendkim not sign email from php on second domain

I have two domains, called them example1.com and example2.com on example1.com all emails sent with dkim sign. on example2.com emails from php sent without dkim sign, but if send email from console, email will be signed. ex. console command: php…
Waki
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Difference between DKIM and DomainKeys

There are two methods for signing mail out there (DKIM and DomainKeys). While some sources say that DomainKeys are "ancient", others say you need both, even though to my understanding they do almost the same. Do I need both methods applied to our…
Flatron
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Change Return-Path address with postfix/opendkim

I've just set up opendkim on my server. Prior to this I had postfix set up to have the return path headers set to info@domain.com now after installing opendkim that's now changed back to what it was before I made the postfix change to…
Novocaine
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opendkim only signs for 1 zone on a hosted server

I am implementing opendkim but I can only get it to sign for 1 zone. The tld is failing to sign even though it is the same key/signature/file for both domains. my .conf: cat /usr/local/etc/mail/opendkim.conf LogWhy yes Syslog …
mine
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opendkim to sign all '*' users in a domain

How do you get opendkim to sign for all users in a domain? *@exmailer.com exmailmap in the signing table is not working for me. error: opendkim[1565]: 573D4A0D3D: no signing table match for 'user@exmailer.com' but, user@exmailer.com…
mine
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Postfix not using "non_smptd_milters"

Currently configuring a mail server using Postfix/Dovecot on Ubuntu 14.04 x86. At the moment I'm trying to setup DKIM using OpenDKIM. The guide I am following tells us to put the parameter "non_smtpd_milters=inet:localhost:8891" in…
Aeth
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