OT: DOS attack using RSET commands?

[Travis Taylor]

Apologies about multiple posts, but appears my postings are not making
it to the mailing list.

Anyone else noticing a large surge in number of clients/connections
issuing repetitive RSET commands when the connection is permanently or
temporarily rejected?

The majority of the connections appear to originate from the RIPE and
APNIC netspace.  It is getting to the point where the load is 3 times
normal and email delivery to us is extremely slow due to the large
number of repetitive open connections.  Anyone have similar issues?

--
Travis Taylor
Unified School District 373