full-disclosure - TCP port 25 traffic?

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From: josh.karp at visionael.com (Josh Karp)
Subject: TCP port 25 traffic?

I've seen an unusual amount of connection attempts to TCP port 25 on a
particular system in my network as of the past 48 hours or so. It's only
this one system, and it's multiple source IP's. Is there anything new for
SMTP? 

Thanks for any info... josh 

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