Apple mail blocking our uncoming bulk mail since march.

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Level 1

4 points

Apple mail blocking our uncoming bulk mail since march.

Hello, as Czech dental chamber we send bulk mails from vz*****@dent.cz to dentists so they can pay theres exams. Since march our mail come back as failed to delivered to @icloud.com and @me.com. If we try send mail from other mail in our organization, it works. If we try send mail from @icloud.com to vz****@dent.cz, it works. We use Microsoft exchange as our mail provider. We need some resolution as soon as posible, please.

Some examples:

[Edited by Moderator]

Posted on Apr 3, 2024 1:21 AM

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Answer 1

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MrHoffman

Level 10

148,563 points

Apr 3, 2024 7:13 AM in response to Plachý

At the risk of asking the obvious, have you followed the directions in the support article referenced in the response?

https://support.apple.com/en-us/HT204137 ?

That is, have you implemented DKIM, DMARC, and SPF, and also have established an A and quite possibly an AAAA record (correctly-configured DNS) for the mail server? For proper DNS, foreword (name to address) and reverse (address ro name) DNS translations must match.

I can’t tell what the SMTP server setup is either, as the most obvious DNS for this mail server is not responding to queries.

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Answer 2

Plachý Author

Level 1

4 points

Apr 8, 2024 4:53 AM in response to MrHoffman

For someone who have same issue. Just send these information:

Your company name
Your email domain
The IP addresses of the affected mail servers
The SMTP errors that you're getting from iCloud mail servers
A detailed description of the issue, including when it started

To icloudadmin@apple.com and they will resolve it, when it isn't problem on your side.

Thank you for your help.

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Apple mail blocking our uncoming bulk mail since march.

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