Am 2008-02-28 15:30:43, schrieb Mike Jackson: > Not "nearly impossible." I work daily with people who run servers > exactly like that, yet spam of all sorts is spewing from their mail > queues. Most of the ones I see are SMTP accounts with weak passwords. > The spammers authenticate as the users and bam, the server is a spam source.
This would be definitivly noticed since I have (annonym) statistics of
send/received messages per account. So if there is one $USER getting
normaly 10 messages a day and then one day he/she get 100, the account
is probably victim of a spamer and a SOS script inform me immediatlly
to check the status...
The same is for sending messages... There are not realy much peoples
sending more then 10 messages per HOUR. So a hijacked account would
me immediatly send me a SOS message...
> With Hotmail, make sure that you have a reverse DNS record for your
> server's sending IP, that the A record for that name resolves to the
> same IP, and that your SMTP banner greeting lists the same name. Also,
Yeah, this is all working for some years now...
> if you use SPF records, do not use the PTR option - they reject mail
> from domains that contain that option.
I do not use it...
Thanks, Greetings and nice Day
Michelle Konzack
Systemadministrator
24V Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant
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