Email delivery issues 550 4.4.7

Website, Application, Performance
1

What is the name of the domain?

bpglass.cl

What is the error number?

550 4.4.7

What is the error message?

The recipient’s domain bpglass.cl was not available or does not accept messages.

What is the issue you’re encountering

Within the same email sent, some mailboxes gets it bus some are not receiving it.(both domains are inside MS365 Exchange)

What steps have you taken to resolve the issue?

Contacted MS support but they said the message arrives to the server but does not receive the message in 2 of 5 mailboxes. (checked the log)
After that, if I pause/disable Cloudflare on the domain, it works just fine.

What are the steps to reproduce the issue?

Every mail sent after 12/17/2024 isn’t arriving to destination

Screenshot of the error

02.png
02.png942×620 20.9 KB

2

When you’re doing this, … are you:

  1. Pausing / unpausing Cloudflare?

  2. Switching the Proxy status on individual DNS record(s)?

You have two CNAME records, one named “selector1._domainkey”, and another named “selector2._domainkey”, …

Are the Proxy status for these two set to Proxied (:orange:), or Unproxied (:grey:) / DNS-only?

Proxy status MUST be Unproxied (:grey:) / DNS-only, for any DNS record(s) you have, that is related to email traffic.

2 Likes
3

Just enable/disableon the dns homepage

none of MS registrys are proxied

4

Can I get you try the following, in the mentioned order?

  1. Enable Cloudflare.

  2. Wait 30 minutes.

  3. Send an email to the email address, that I have sent to you privately.

5

The thing is that I dont have access to any email from the sender, we’re the receiving domain

6

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