On Fri, 19 Sep 2008, Mark Crispin wrote:
> Are you aware that sendmail also does case-independent matching of
> user ids?
>
> It is silly to assume that you want to have joey, Joey, JOEY, etc. as
> separate user ids. It's unfortunate that FTP makes that mistake.
Actually sendmail does configurable case squashing of user-ids, with the
default of case squashing enabled. (In otherwords 'Joe' 'JOE' and 'joe'
all get converted to 'joe' before any delivery processing is done,
unless you add the 'u' mailer flag to preserve case).
The net result, if you have the default config and a user with a login
ID of "Joe", he can never receive any mail.
(also if you try to use the "+" mailbox selector syntax, you cannot
send mail to "joe+Drafts", it gets turned into "joe+drafts").
--
Dave Funk University of Iowa
<dbfunk (at) engineering.uiowa.edu> College of Engineering
319/335-5751 FAX: 319/384-0549 1256 Seamans Center
Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527
#include <std_disclaimer.h>
Better is not better, 'standard' is better. B{
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