Please, see below... The whole turnaround was roughly a second. What I meant by "Sending mail into Postfix" is chilkat application takes 13 seconds to send it.
Sep 12 10:38:49 mail1 postfix/smtpd[30657]: connect from unknown[192.168.0.147] Sep 12 10:38:50 mail1 postfix/smtpd[30657]: 0208544124: client=unknown[192.168.0.147], sasl_method=LOGIN, sasl_username=u...@mail1.domain.biz Sep 12 10:38:50 mail1 postfix/cleanup[30661]: 0208544124: info: header Subject: Order from domain Inc. ORDER # 2254400 from unknown[192.168.0.147]; from=<u...@domain.com> to=<6kdpkhxr3t6r...@marketplace.amazon.com> proto=ESMTP helo=<User29-ws.domain.local> Sep 12 10:38:50 mail1 postfix/cleanup[30661]: 0208544124: message-id=<CHILKAT-MID-3baab4e7-8ade-db94-236d-92d797ce8be2@User29-ws.domain.local> Sep 12 10:38:50 mail1 postfix/qmgr[3632]: 0208544124: from=<u...@domain.com>, size=2404, nrcpt=1 (queue active) Sep 12 10:38:50 mail1 postfix/smtpd[30657]: disconnect from unknown[192.168.0.147] Sep 12 10:38:50 mail1 postfix/smtp[30325]: 0208544124: to=<dkfsdklfd...@marketplace.amazon.com>, relay=retail-smtp-in.amazon.com[176.32.98.133]:25, delay=0.26, delays=0/0/0.1/0.15, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 52D9D9EC1AE) Sep 12 10:38:50 mail1 postfix/qmgr[3632]: 0208544124: removed On Thu, Sep 12, 2013 at 10:15 AM, Wietse Venema <wie...@porcupine.org> wrote: > Roman Gelfand: >> Based on comments made by Wietse, it looks like my server is in good >> shape as the connections are not even taking a second and the whole >> process is taking roughly a second. > > Sending mail into Postfix takes roughly a second? > >> We have a program which every so often sends a request, using chilkat, >> to postfix to send out email with attachment. With every send it has >> to connect to postfix using sasl authentication. Each send appears to >> take a long time. > > Sending mail into Postfix takes a long time? > > Wietse >