Pinging Mike Haas was Warning: could not send message for past 4 hours

From: Fred N. van Kempen <waltje_at_pdp11.nl>
Date: Thu Nov 20 09:05:17 2003

On Thu, 20 Nov 2003, David Holland wrote:

> Looks to me like mx01.mail.bellsouth.net's smtp server is
> overloaded/unreachable/down/etc.
>
> ><dogas_at_bellsouth.net>... Deferred: Bad file number
> >Reporting-MTA: dns; ms-smtp-02.tampabay.rr.com
> >Remote-MTA: DNS; mx01.mail.bellsouth.net

yeah, the kernel (or the smtp server process itself) ran out
of usable file descriptors, so too many open files. Which
probably means too many server-side SMTP sockets, meaning
someone DOS'd it.

(willingly or not ;-)

--f

-- 
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at                     http://www.pdp11.nl/VAXlab/
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Email: waltje_at_pdp11.nl         BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA
Received on Thu Nov 20 2003 - 09:05:17 GMT

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