exim error : all relevant MX records point to non-existent hosts

[freakie]

Hi,

im trying to receive a password reset mail from a dutch company.

but whatever i do trying to whitelist them i see this in the logs:

rejectlog:2024-01-10 15:32:26 H=mail-db5eur01acsn259.outbound.protection.outlook.com (EUR01-DB5-obe.outbound.protection.outlook.com) [104.47.2.59] sender verify fail for <[email protected]>: all relevant MX records point to non-existent hosts

the name login.nederlandseloterij.nl has no a record but does have a mx record.

so how come this error and how can i prevent/fix it?

 

[Richard G]

the name login.nederlandseloterij.nl has no a record but does have a mx record.

They configured it wrongly. They use MX for both login and main domain. But the error is that they don't use an A record but a CNAME record to a non-existing eu.sparkpostmail.com domain. They might have forgotten to change this record also to outlook.

so how come this error and how can i prevent/fix it?

First of all, send them a message explaining their record are incorrect and not working, so they can fix it. Or call them stating you can't fix things because they have a bad configuration running now, so you can't receiver answers to your mails either.
I had something with bad configured things with RDW too about 2 years ago, which made my mailservers refuse their mail, but I believe they fixed it now.

If you're using outlook, I'm afraid there is nothing you can do,.

On your own server, you might try to use the whitelist* files in the /etc/virtual/ directory.
Restart Exim after you made changes to these files.

 

[freakie]

thanks for your answer. i have tried to contact them but no luck yet.