Several 10mio additional weird spams per day

[Michelle Konzack <li...@tamay-dogan.net>]

Hello *,

my server has arround 680 Mailinglists and over 100.000 Users and usualy
I get between 2-3 mio legitim messages plus arround 14 mio  spams  where
80% are rejected on SMTP level.

But since some days, my servers are hit by more then  90 mio  spams  per
day...  OK, most of them are rejected but to get a hint what this sopams
are I disabled SMTP checks and goten immediately several 1000 spams in.

The mails make absolutely no sense and they  are  coming  probably  from
hijacked Workstations.  Mean, I counted alredy more then 23.000 differnt
IPs

I am right, that this are tests to validate existing mail accounts?

Note:   My gateway server <mail.tamay-dogan.net> is only a proxy and
        I counted more then 120 mails per second which  the  16 main
        servers (Sun Fire X4150) behind have to handel which is  not
        a real poblem but my Internet access is only 100 MBit FTTH.

Thanks, Greetings and nice Day/Evening
    Michelle Konzack

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