The greeting message always starts with 220 and might look something like one of these
sample greetings:
220 host.domain ESMTP Sendmail 8.12.6/8.12.6; Fri, 13 Dec 2002 13:19:01 -0700 (PDT)
220 some.server.net - Maillennium ESMTP/MULTIBOX in2 #46
220 another.server.com ESMTP CommuniGate Pro 3.5.9
220 another.host.domain ESMTP mail_relay_in-xg3.9; Fri, 13 Dec 2002 16:22:35 -0400
220 organization.domain ESMTP Exim 3.34 #1 Fri, 13 Dec 2002 13:25:56 -0700
You can set an initial timeout withth e initial keyword to the Timeout option, using one of
these forms:
O Timeout.initial=timeout ?†? configuration file (V8.6 and later)
-OTimeout.initial=timeout ?†? command line (V8.6 and later)
define(`confTO_INITIAL??, `timeout??) ?†? mc configuration (V8.6 and later)
The default for the greeting wait and the recommended minimum is five minutes.* The mc
technique uses confTO_INITIAL, for which there is no default.
* Because DNS name resolution can time out and retry and can actually take up to five minutes!
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24.9 Alphabetized Options | 1105
24.9.119.15 Timeout.lhlo (V8.12 and later)
The sendmail program can use LMTP to deliver mail to a local delivery program. One such
program is mail.local (?§10.3 on page 359). When sendmail first starts an LMTP connection,
it sends the LHLO command.
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