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SRS and AOL case folding

2004-03-19 15:24:25
I got a bounce from AOL with the case folded:

2004Mar19 10:56:43 [1210] connect from omr-m07.mx.aol.com at ('64.12.138.19', 
55164) EXTERNAL
2004Mar19 10:56:43 [1210] hello from omr-m07.mx.aol.com
2004Mar19 10:56:43 [1210] mail from <> ('SIZE=2849',)
2004Mar19 10:56:43 [1210] Received-SPF: none ( mail.editorialunilit.com: 
postmaster(_at_)omr-m07(_dot_)mx(_dot_)aol(_dot_)com does
        not designate permitted sender hosts)
2004Mar19 10:56:44 [1210] rcpt to 
<srs0+ff71vdai=gq=expolit(_dot_)com=angelica(_at_)editorialunilit(_dot_)com> ()
2004Mar19 10:56:44 [1210] srs spoofed: 
srs0+ff71vdai=gq=expolit(_dot_)com=angelica(_at_)editorialunilit(_dot_)com
2004Mar19 10:56:44 [1210] abort after 0 body chars

Should I worry about this?  The bounce would have been valid if not case
olded.  Also, when SPF returns 'none', should I
check smaller right hand sides?  E.g. check mx.aol.com, then aol.com 
(which would pass).

-- 
                        Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
      Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
      "Very few of our customers are going to have a pure Unix
      or pure Windows environment." - Dennis Oldroyd, Microsoft Corporation