535 Incorrect authentication data

[plantheo]

I know that there are a lot of posts about this but I couldn't find any working solution.

A few days ago, after updating Exim, that service didn't start again. That issue was solved. But after that Roundcube (and any other script involving SMTP authentication) fails to send email:


When I check the Exim Mainlog I found this:
2023-10-06 16:13:02 login authenticator failed for (schroeder.xvserver.com) [127.0.0.1]: 535 Incorrect authentication data (set_id=[email protected])

I've checked this but there are no permission issues: https://forum.directadmin.com/threads/535-incorrect-authentication-data-smtp-webmail.41830/
I've tried to change password via "Change password" in admin scope but no good.

The strangest thing is that everything was working fine until Exim was updated.

My customers are putting pressure on me and I don't know how to resolve this anymore.
Any help will be greatly appreciated.

 

[Richard G]

Are you sure it's after an Exim update?
Did you change your hostname by any chance? Because I see schroeder.xvserver.com and if that is your hostname it doesn't have an A record and rDNS/PTR record as far as I can see.
Might not even be existing in /etc/virtual either. You have to doublecheck that.

Might not be related, but I would start with fixing that.

 

[plantheo]

Thank you Richard. I didn't change anything related with the hostname. Maybe a corrupted update? I don't know what to think...

Are you sure it's after an Exim update?
Did you change your hostname by any chance? Because I see schroeder.xvserver.com and if that is your hostname it doesn't have an A record and rDNS/PTR record as far as I can see.
Might not even be existing in /etc/virtual either. You have to doublecheck that.

Might not be related, but I would start with fixing that.

 

[Richard G]

I don't know what to think...

I don't know either, I'm just stating what I'm seeing, so if that is your hostname some things need fixing.