Oh no! The 13Mb email is back!
He had trouble sending it to me in the first place, so tried more than once. I got the message - and today I got it again. Looking at the headers, I can see that the aptly named "Clearswift" SMTP service held the message or 2 weeks before finally getting it through to the next step in the chain:
Received: from n200.csv.au by sportal2.dhs.vic.gov.au via smtpd (for hnm2.dhs.vic.gov.au [18.104.22.168]) with ESMTP; Wed, 25 Feb 2009 14:58:23 +1100
Received: from n214.service.csv.au (n214.service.csv.au) by n200.service.csv.au (Clearswift SMTPRS 5.3.0) with ESMTP id <T8c71dddc5b97b2dec31cf0@n200.service.cs
v.au> for <nathan_jones.id.au>; Wed, 11 Feb 2009 13:09:46 +1100
Hopefully this is the last copy I'll receive. I already had to move it out of my inbox to avoid problems.