LOL this is just soooooooo funny., watching the no no no im right you're wrong, give up stanley, those on many lists are aware of your trolling, nobody cares about your lil SOHO world, this list contains many different sized orgs, and like someone else mentione,d the 4K email size is SO 1994, but, that about sums you up anyway.
On Sat, 2011-01-15 at 23:19 -0600, Stan Hoeppner wrote:
Philipp Haselwarter put forth on 1/15/2011 8:32 PM:
,---- | More than 97% of all e-mails sent over the net are unwanted, according | to a Microsoft security report.[39] | | MAAWG estimates that 85% of incoming mail is "abusive email", as of the | second half of 2007. The sample size for the MAAWG's study was over 100 | million mailboxes.[40][41][42] | | Spamhaus estimates that 90% of incoming e-mail traffic is spam in North | America, Europe or Australasia.[43] By June 2008 96.5% of e-mail | received by businesses was spam.[18][unreliable source?] `----
I just have a tiny set of 4k spam mails, but they have an avg size of 39KB, ie well above 4KB.
This discussion has been in the context of _storing_ user email. The assumption is that an OP is smart/talented enough to get his spam filters/appliances killing 99% before it reaches intermediate storage or mailboxes. Thus, in the context of this discussion, the average size of a spam message is irrelevant, because we're talking about what goes into the mail store.
If you're storing significantly more than 1% of spam you need to get that under control before doing any kind of meaningful analysis of mail storage needs.