Hello guys,
I having some issues with invalid (self signed) certificate for mail.domain.com.
Let's encrypt is working just fine with domain.com and all other sub.domain.com .
It doesn't happen with all accounts, though.
I checked DNS entries, end everything looks good to me.
Do any of you guys are getting this issue?
Thanks
edit: Just to clarify, this is happening with mail.customerdomain.com , but now with all customer accounts .
edit2: Mail accounts are in a different server, from the application server.