Question Plesk keeps re-enabling IPV6

[finbarr69]

Server operating system version

Ubuntu 22.04.5 LTS

Plesk version and microupdate number

Plesk Obsidian 18.0.77 Update #2 Web Host Edition

My hosting provider does not provide a reverse DNS IP mapping for IPV6, and as google requires this to accept email from my server, I have to disable IPV6 on the server. I disabled it following the instructions. It works for a few weeks, then something updates the configuration file /etc/postfix/main.cf and turns it back on. I now have a cron that runs every 5 minutes to turn it back off again if it sees it change.
I just wondered if anyone else has seen this annoying behaviour?
Thanks

 

[scsa20]

Are you trying to disable IPv6 system wide or just for outgoing emails? If just for outgoing emails, why not just the "Outgoing mail mode" setting under Tools & Settings > Mail Server Settings to be "Send from the specified IP addresses" and leaving IPv6 to None while choosing the IPv4 address you want to send from?