Questions tagged [dkim]
DomainKeys Identified Mail is a scheme for signing and verifying email messages to confirm that that the source hasn't been forged, and is typically implemented by MTAs. The source MTA adds a header to the message body containing a signature, and the destination MTA verifies this signature against a key retrieved from DNS.
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Why is Gmail labelling DKIM signed mail as spam? [duplicate]
I am running a Postfix with OpenDKIM for DKIM signing.
In the past, I have used a single domain and have not encountered issues with mail being labelled as spam.
I currently have multiple domains on ...
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How to interface with Postfix `non_smpt_milter`?
After many hours attempting to configure OpenDKIM with Postfix and having no luck, I have come to the conclusions that:
I cannot get OpenDKIM to work
I am not able to find a suitable out-of-the box ...
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OpenDKIM Isn't building with OpenSSL correctly [migrated]
I am trying to build OpenDKIM from source. For some reason, the build is not supporting SHA-256, even when the OpenSSL version I am building with uses SHA-256. How is this possible ?
I run:
./...
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Has anyone configured Zoho Campaigns? [closed]
I've set up both SPF and DKIM by adding the provided TXT records in the domain authentication section of the platform. I also added a custom return path CNAME record for SPF. However, neither of them ...
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Postfix/OpenDKIM DKIM Key Verification Failing: "record not found"
I'm setting up DKIM with Postfix and OpenDKIM on my Ubuntu 22.04 server. The email signing appears to work correctly, but verification is failing with the error record not found when using the ...
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SMTP - How to send mail as @example.com when example.com cannot be used as source server/IP
I have run into a bit of an issue when attempting to set up a mail system where the parent domain, example.com, already has A records and a web server as well as many clients utilizing the parent ...
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DKIM Record Externally Readable Yet Emails Not DKIM Signed
I have a VPS and launched my own mail server on it using Postfix & Dovecot.
Emails are now going in and out of my self-hosted mail server.
I created reverse A, SPF, DMARC and DKIM records for ease ...
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Trying to figure out a DMARC/DKIM situation
I recently helped a friend implement DMARC/DKIM/SPF and got a report that makes no sense to me.
Their domain is hosted on SquareSpace, they use Google Apps for email, and Mailchimp for mailing lists. ...
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Understanding DMARC report - DKIM pass on SPF fail
I am looking for some help understanding a DMARC report for my email server. The xml content looks like the following:
<?xml version="1.0" encoding="UTF-8" ?>
<feedback>...
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DKIM Validating Signature result = fail, Zimbra Mail Server using Google SMTP
I have a Zimbra Mail Server Release 8.8.15, so using a Gmail Free SMTP. I've already configure the DKIM using zmdkimkeyutl to generate the DKIM Record and Save in the Domain Provider. Also I'm already ...
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How to add your own private keys to postfix configuration for DKIM without opendkim or the likes of it?
I have generated the keys locally through openssl added key.pub to the DKIM DNS txt Record but how to add it to postfix withouth any other tool.Is there any connfiguration parameter where the file ...
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What are these DMARC failures about?
I've been toying with dmarc off and on for the last couple of months. Currently I have no policy set. I am using URIReports for report collection and analysis. Most of the results are good. We use ...
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Your DKIM signature is not valid - opendkim
I'm running postfix server with few "features" like spf, dmarc and DKIM. SPF and DMARC works fine and when I sent an email to my gmail account I see they PASS, however DKIM shows "FAIL&...
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How to get SPF alignment to pass DMARC for a subdomain?
I have the following DNS configuration:
$ dig +noall +answer -t txt example.com
example.com. 626 IN TXT "v=spf1 +a +mx include:sendgrid.net include:_spf.google.com -all"
$ dig +noall +...
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This relay isn't allowed to send mail "From" gmail.com
I'm on GoDaddy and since about January 2024, I've been getting this message from various gmail and yahoo accounts: ECDHE-RSA-AES256-GCM-SHA384:256 CV=yes: SMTP error from remote mail server after end ...
