Forum SMTP script error

I keep seeing this pop up when I reply to certain threads: Code: Select all General Error Ran into problems sending Mail. Response: 450 4.1.2: Recipient…

member_18efface25 29 Aug 2026 #1

I keep seeing this pop up when I reply to certain threads: Code: Select all

General Error
Ran into problems sending Mail. Response: 450 4.1.2: Recipient address rejected: Domain not found
DEBUG MODE
Line: 165
File: smtp.php

My educated guess? The forum has been given an incorrect email address by someone who subscribed to a thread, so when I post and the system attempts to notify them, it throws this error.