On 1/1/01, Len Conrad penned:
>>Will IMail look at each message and write an error to the log or
>>just ignore if it's not coming from a specified IP?
>
>Imail get DoS'd by having to look up each and every "RCPT TO:
>recipient@" in the internal/external Imail user database to decide
>to accept or reject "recipient@".
That sucks. I figure if Relay For Addresses in turned on, IMail
should just reject any connection that isn't from an IP in the list.
Why should it care who the recipient is unless you're using relay for
users or domains? Or will it still relay mail to users even if the
mail originates from an IP not on the list?
>And of course, if SMTP logging is turned on, Imail will dutifully
>log each and every "unknown user" rejection. And as we saw in his
>logs, if "max RCPT TO: per session" limit is setr and exceeded,
>rather than disconnect the SMTP brutally, Imail politely rejects and
>logs each (valid/invalid) recipient@ beyond the limit, continuing
>the DoS at full SPAM speed.
>
>The size of the log files explodes to 100's of mb's, as he reported.
Well. luckily mine are pretty consistently between 800 KB and 1 MB. :)
--
Bud Schneehagen - Tropical Web Creations
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