iCloud custom domain email won’t let me send to Gmail accounts due to lack of SPF or DKIM

For some time, I realized I have not been able to email people with Gmail addresses from my iCloud custom domain email. This is fairly recent, sometime around summer, and was not an issue before. The emails coming back end up in the iCloud spam folder stating:

This mail has been blocked because the sender is

unauthenticated. 550-5.7.26 Gmail requires all senders to authenticate with

either SPF or DKIM. 550-5.7.26 550-5.7.26 Authentication results:

550-5.7.26 DKIM = did not pass 550-5.7.26 SPF ….

I have spoken to both apple support and my domain provider to no avail, and would really appreciate any solution to this as it affects a large part of my correspondence.

Has anyone experienced this and found any solution?

MacBook Air, macOS 14.0

Posted on Oct 6, 2023 06:46 PM

Top-ranking reply

kamote0628

Community Specialist

Posted on Oct 8, 2023 10:33 AM

Hi Schnappschuss,

We appreciate you reaching out to us.

We’d like to gather additional details that may help us be in a better position to assist you.

Did you accurately follow the steps in the article below when setting up your email?

The article below contains information about adding DKIM and/or SPF records

Set up an existing domain with iCloud Mail

If yes, you may have to get in touch with the company that provided your domain to look into these records.

If the issue persists, please reach out to us using the support link below so we can take a closer look into the issue.

Get Support

Take care!

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iCloud custom domain email won’t let me send to Gmail accounts due to lack of SPF or DKIM

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