Re: SMTP server error message

[Eli Zaretskii]

> From: Achim Gratz <address@hidden>
> Date: Sat, 31 May 2014 16:16:33 +0200
> 
> Getting a 451 means, "Sorry, didn't work out this time.  Come back later
> if you still want to."  Most SMTP servers would now enter exponential
> backoff for re-delivery attempts, most MTA will simply bow out and let
> the user handle the problem.

Thanks.  So you are saying I have nothing better to do than perhaps
talk to my ISP representatives and urge them to fix the problem?