[Mimedefang] Roaring Penguin spam statistics
David F. Skoll
dfs at roaringpenguin.com
Sat Nov 22 11:05:21 EST 2003
Hi,
A while ago, someone asked about real spam statistics. Here
are the statistics for Roaring Penguin for Friday, 21 November 2003:
Valid e-mails that got delivered: 189
Viruses: 129
User unknown: 281 [Note 1]
Spam: 66
Greylist: 122 of which around 75 were spam. [Note 2]
Note 1: User unknowns are bounces -- spammers are faking mail from
"random_junk at roaringpenguin.com" and we're rejecting bounce messages.
Note 2: Greylist entries are first-time senders that are tempfailed. The
~75 that never retransmitted were spam.
So: Valid mail: 189
Invalid mail: 129 + 281 + 66 + 75 = 551
Note also that viruses make up 23% of all messages, or (worse) there
are 68% as many viruses as valid messages. On a byte-volume basis, I
would guess that 85% of our mail volume consists of viruses, because
viruses are much larger than the typical e-mail we receive. :-(
Regards,
David.
--
David F. Skoll <dfs at roaringpenguin.com> Roaring Penguin Software Inc.
+1 (613) 231-6599 ext. 100 http://www.roaringpenguin.com/
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