Unable to send to outlook my emails

Community Support Mail
1

I received this message. And how to resolve this? I have problem only with outlook.

## Mail delivery failed: returning message to sender

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

[[email protected]](mailto:[email protected])
host glsserbia-com0i.mail.protection.outlook.com [52.101.73.26]
SMTP error from remote mail server after RCPT TO:<[[email protected]](mailto:[email protected])>:
550 5.4.1 Recipient address rejected: Access denied. [AMS0EPF000001A4.eurprd05.prod.outlook.com 2025-01-22T15:01:59.301Z 08DD370E04A32BA2]

Reporting-MTA: dns; localhost

Action: failed
Final-Recipient: rfc822;[[email protected]](mailto:[email protected])
Status: 5.0.0
Remote-MTA: dns; glsserbia-com0i.mail.protection.outlook.com
Diagnostic-Code: smtp; 550 5.4.1 Recipient address rejected: Access denied. [AMS0EPF000001A4.eurprd05.prod.outlook.com 2025-01-22T15:01:59.301Z 08DD370E04A32BA2]
2

Clearly stated that server gls-serbia.com refuse your email. Your problem in DNS records and/or Exim config. Pls read how to set properly your DNS recods, what to post in txt section for DNS, and test your config by sending email to https://www.mail-tester.com for troubleshooting. Your problem isnt connected to hestiacp at all.

3

Everything is fine when I tested via mail tester:

image
image1920×947 155 KB

4

Perhaps your address is blacklisted there, but what does the /var/log/exim4/mainlog log say? Does mail go to other addresses?

5

This is a problem on the recipient server.

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