TianJiao wrote: ↑
Fri Nov 16, 2018 9:29 am
I mean , for example
registration forums, can't receive registration letters by using Hotmail mails, but can receive registration letters by using Gmail mails.
notification set "Someone sends you a private message" by Email , hotmail can't be received now.
This sounds like whomever provides the email handling for the hosting service where you are running phpBB has changed their policy, or detected some condition which is causing them to drop emails being sent by your phpBB hosting server that are directed at hotmail.com recipients.
What is the DNS name of your phpBB board?
What are the "Contact email address" and "From email address" set to in the "General" section of ACP -> General -> Client Communication -> Email Settings?
What is the "Use SMTP server for email" and "SMTP server address" set to in the "SMTP Settings" section of ACP -> General -> Client Communication -> Email Settings?
With this information, we should be able to tell who is currently providing your email handling; although ultimately you might have to talk to them to resolve the issue. Depending on what these are currently set to, there might be other suggestions as well.