> How do I prevent Openssh telling which version is running? > Likewise with sendmail? (I know you'll tell med to use another MTA..).
openssh: you need to patch the source afaik. no simple solution.
sendmail: in sendmail.cf, look for:
# SMTP initial login message (old $e macro)
O SmtpGreetingMessage=$j Sendmail $v/$Z; $b
$j - hostname (see line that starts with 'Dj' )
$Z - version (see line that starts with 'DZ' )
$b - time
Its recommended to keep $j , in order to identify the name servers
host name. other then that, just change it...
O SmtpGreetingMessage=$j My_Supermailer - Do not relay.
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