>  In:  220 X1 NT-ESMTP Server email.abc.net (IMail 7.05 356740-2)
>  Out: EHLO mgw1.geeksnet.com
>  In:  250-email.abc.net says hello
>  In:  250-SIZE 0
>  In:  250-8BITMIME
>  In:  250-DSN
>  In:  250-ETRN
>  In:  250-AUTH LOGIN CRAM-MD5
>  In:  250-AUTH=3DLOGIN
>  In:  250 EXPN
>  Out: MAIL FROM:<> SIZE=3D2304

... interesting decimal number  :))

>  In:  501 bogus mail from
>  Out: RSET
>  In:  250 ok its reset
>  Out: QUIT
>
>
>Mgw1.geeksnet.com is my server.  I'm getting tons of these.  Is this a
>dictionary attack?

no, it's just your server refusing null senders, violating RFC.

Len


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