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$v

---

The version of sendmail

All versions

The v macro contains the current version of the sendmail program, taken from the Version variable that is initialized in version.c of the sendmail source. $v is used in defining the SmtpGreetingMessage ( $e ) option (SmtpGreetingMessage):

 O SmtpGreetingMessage=$j Sendmail  $v  /$Z; $b 

in Received : header lines (Received:):

 $.by $j (  $v  /$Z)$?r with $r$. id $i$?{tls_version} 

and in the Helpfile message (HelpFile):

 214-2.0.0 This is sendmail version 8.12.7 

The value given to $v can vary with the vendor. There is currently no standard for identifying variations on the sendmail program. Clearly, $v cannot contain a true picture, unless your binary is built from the open source distribution.

$v is internally defined when sendmail starts up. It can be redefined in the configuration file or as part of the command line.