Nameserver calls - libesmtp problem?

[Albrecht Dreß <albrecht dress arcormail de>]

Hi all!

I am afraid that I have a problem with unwanted nameserver calls from balsa
1.1.6, compiled with libesmtp...

My configuration is a locally running sendmail (configured as localhost:25)
transferring everything to a remote smarthost, with this connection marked as
"expensive". This means, that sendmail makes no calls to a dns, and waiting
mails are sent only upon request (this is done within the isdn ip-up script).

When I send a mail, a dialog flashes up with a "250..." message, and a isdn
dial is triggered by a call to port 53 (nameserver). This is *not* caused by
sendmail, as can be seen in /var/log/maillog:

Jun 20 23:09:37 regulus sendmail[9169]: f5KL9Wj09169: from=<...>, size=4431,
class=0, nrcpts=1, msgid=<20010620230931.C9126@regulus.mpifr-bonn.mpg.de>,
bodytype=8BITMIME, proto=ESMTP, daemon=Daemon0, relay=localhost [127.0.0.1]
Jun 20 23:09:37 regulus sendmail[9169]: f5KL9Wj09169: to=<...>,
delay=00:00:00, mailer=relay, pri=34431, stat=queued
Jun 20 23:09:45 regulus sendmail[9181]: f5KL9Wj09169: to=<...>, ctladdr=<...>
(201/100), delay=00:00:08, xdelay=00:00:02, mailer=relay, pri=124431,
relay=.... [...], dsn=2.0.0, stat=Sent (Mail accepted)

I suspect that balsa (or libesmtp?) initiates a dns call. This behaviour has
changed at least since I switched to libesmtp. Unfortunately, I have a little
chaos of different versions here on my disk, so I can't see when it actually
changed, but 1.1.4 without libesmtp does *not* trigger the dns call.

Before I dig into the sources: can anybody confirm this problem (feature?
bug?), and does anybody have an idea how I cat get rid of that behaviour?

Thanks in advance, Albrecht.

-- 
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    Albrecht Dreß  -  Monschauer Straße 22  -  D-53121 Bonn (Germany)
      Phone (+49) 228 6199571  -  E-Mail albrecht.dress@arcormail.de
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