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Questions tagged [opendkim]

12 questions
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1 answer

Why do DKIM public keys always end with 'IDAQAB'?

I have noticed that all the DKIM public keys generated always end with the string 'IDAQAB'. Any reason to it or are there cases where DKIM public keys will not end with the same string all the time ?.
Raisin
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DKIM passes even though domains don't match

I'm trying to figure out how DKIM verification works. My understanding so far has been that the domain inside DKIM-Signature header must match the domain inside From header in case for DKIM check to pass. I configured the opendkim SigningTable all…
user19108535
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1 answer

How to add 'i=' tag in DKIM signature (opendkim)

I would like to add the i, Identity — the identity of the signer — in email address format Can you help me? /etc/opendkim.conf contains: KeyTable refile:/var/lib/dkimkeys/keyTable SigningTable …
ismail Mhiri
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Email service uses DKIM, but OpenDKIM cannot be started

The email service can be used normally, but the dkim signature part is still missing. Refer to multiple guides, such as the two below. https://blog.csdn.net/yetugeng/article/details/83996397 (Chinese…
Jveshi
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Google mail server is giving me 2 records via as an e-mail, both records are the same except one DKIM pass and other fail

I receive the Googla mail test result as an XML file. It looks like…
Patrik Laszlo
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Emails are not signed with DKIM if sending from remote server trough my POSTFIX server

We have a remote app that sends emails trough my actual POSTFIX server. Remote app is on a Azure VM where port 25 is completely blocked. My Postfix server accepts now emails from default port locally and 2525 port used to connect from Azure VM. The…
Cristian Ursena
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dkim=fail but I set dkim for selector mail and it's resolvable

I have a mail server which was working with no issue, but this night suddenly my emails are sent to spam folder. This is dig +short txt mail._domainkey.my-domain.com.: "v=DKIM1; h=sha256; k=rsa;"…
Saeed
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DKIM verification fails when email body length crosses 988 chars without any line break

I'm using a perl script to send an email using Mime Lite. $msg->attach( Type =>'TEXT', Encoding =>'8bit', charset => 'US-ASCII', Data =>…
yash
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opendkim, multiple domains, managing senders

Correct me if I'm wrong please. Once you've created a list of "trusted hosts" and one or more dkim keys in the keytable and domain table, there's no way to say that ONLY "trusted host" A can send email as A.COM and have it DKIM signed and trusted…
Kevin Martin
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dkim mail servers using domain as selector

I have set up a mail server but when I send mail to gmail accounts I get Authentication-Results: mx.google.com; dkim=temperror (no key for signature) header.i=@h2993269.stratoserver.net header.s=porifera.site header.b=NDzL8dZn; …
user3190036
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How can Postfix filter email (DKIM) without keeping the message in memory and without writing it to disc twice?

I need to DKIM sign possibly huge emails (up to 150MB). I’m running Postfix and so far want to keep that MTA. Conceptually DKIM needs to go over the email twice: once to calculate and sign the checksum and once to write it out with the result of the…
Robert Siemer
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how to tell sendmail to do masquerading before dkim?

Problem: Using : : dnl # opendkim include(`/etc/mail/m4/opendkim.m4')dnl dnl # ClamAV milter include(`/etc/mail/m4/clamav-milter.m4')dnl dnl # Masquerading…
Harri
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