Random sending mail issue with domains link to outlook.com

NethServer Version: 8
Module: mail

Hi. I have been getting random bounced emails from outlook.com linked domains. An example is" Host or domain name not found. Name service
error for name=networktasman-co-nz.mail.protection.outlook.com type=AAAA:
Host found but no data record of requested type" and yet it’s correct and sends other times.

I know this might be a DNSSEC bug or DNS related but was hoping someone had a fix. I am running Debian 12 as the host system.

Thanks in advance,

Hi @Turbond

Looks like this is an exclusively IPv& issue. It’s not complaining about IPv4…

If you deactivate IPv6 (specifically for testing) does it work?

My 2 cents

Thanks Andy,
Nice to hear from you. That was a quick response!

Any idea how to deactivate ip6 in the NethSecurity 8 gateway?

Not really, as I use OPNsense as firewall. I’m still in the testing phase of NethSecurity

My 2 cents