Hi,
we currently run Courier 0.61.1, and we have the strange problem that sending mail via smtp + ssl is quite slow. We're talking about 10-15 seconds from pressing the send button until the mail is sent.
Compared to an nearby Postfix SMTP with SSL, speed is 5-10 times lower.When sending mail from another client (both clients behind an german T-Com ADSL) I even get timeouts when sending mail, in 99% of the cases the 1st mail sent to the courier server produces an timeout. The 2nd try usually works, but is still quite slow.
We did already tune TCPDOPTS with "-nodnslookup -noidentlookup".Even setting BOFHCHECKDNS=0 in all esmtpd config files did not speed up things.
Load on the server is below 1 usually, the sending delay is always there and is always of the same duration.
Any hints, I'm quite clueless where to search further on? kind regards, Markus -- Andreas Bäß Service Level Solutions E-Mail : m...@it-sls.de Hermann-Steinhäuser-Straße 43-47 Telefon: +49 203 878 32 15 63065 Offenbach am Main Fax : +49 69 979 474 45 USt-Id-Nr.: DE 258560003 Mobil : +49 170 732 06 82
smime.p7s
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