Autor: Thomas Hochstein Data: A: exim-users Assumpte: Re: [Exim] Callout results in "421 VS14-RT5 Mailbox bounce arrival rate..."
Suresh Ramasubramanian schrieb:
>> 421 VS14-RT5 Mailbox bounce arrival rate exceeds system limit (#4.2.2)
>
> the number of bounces arriving in a fixed time interval to that mailbox
> trips a limit that yahoo has in place.
>
> two probablities - spamrun, or a virus forging the yahoo mailbox in its
> envelope
