Hi all,

I'm using sendmail 8.13.1. Some user client program adds single quote
in the recipient address like this:

"www-admin@mydomain.edu.hk" <'www-admin@mydomain.edu.hk'>

Then sendmail can't resolve domain mydomain.edu.hk' due the trailing
quote. e.g.

---------------------- cut here --------------------------
....
N13
P1185513
I253/0/4782962
Mtimeout writing message to localhost.mydomain.edu.hk.: Broken pipe
Fbns
$_gw.mydomain.cuhk.edu.hk [123.123.123.123]
$rESMTP
$sgw.mydomain.cuhk.edu.hk
${daemon_flags}
${if_addr}123.123.123.123
....
Mtimeout writing message to localhost.mydomain.edu.hk.: Broken pipe
rRFC822; foobar@mail.mydomain.edu.hk
RPFD:<foobar@mail.mydomain.edu.hk>
H?P?Return-Path: <<81>g>
....

H??From: "Operator on Duty" <DUTYOPR@mydomain.edu.hk>
H??To: "www-admin@mydomain.edu.hk" <'www-admin@mydomain.edu.hk'>,
"Technical Desk" <desk@mydomain.edu.hk>,
"George Michael" <'georgemichael@mydomain.edu.hk'>
....
---------------------- cut here --------------------------

Is it possible to tell sendmail to remove surrounding quotes like
this ?

Besides, such mail left in mqueue. When being processed again, all
addresses in To: and From: headers are parsed, looked up against dns,
and thus have to wait for timeout again. Seems default resolver
timeout values make the delivery fail (Broken pipe error). We've to
reduce Timeout.resolver.retrans and Timeout.resolver.retry to delivery
such mail. I wonder if such address parsing for mail left in mail
queue can be skipped.

Would anyone please ? Thanks a lot.

Best Regards,
/ST Wong