alt Hacker NewsI would simply like to point out that 550 at SMTP time is not a bounce.
Replies
b112 • yesterday at 11:59 PM
5xx are bounces, a perm failure. 4xx error codes are temp (retry) errors.
➕ show 1 reply
I would simply like to point out that 550 at SMTP time is not a bounce.
5xx are bounces, a perm failure. 4xx error codes are temp (retry) errors.
You get an email bounce back with an error code in it. Is there some other definition I'm unaware of?
Wait, that is probably from the local mailer, and otherwise the sender may never know about the rejected messages.