#1130155 $biff should default to no

Package:
postfix
Source:
postfix
Description:
High-performance mail transport agent
Submitter:
Marco d'Itri
Date:
2026-03-11 10:39:02 UTC
Severity:
normal
#1130155#5
Date:
2026-03-09 13:28:17 UTC
From:
To:
Biff is an insecure protocol and as far as I know there are not
implementations left in Debian.
$biff in main.cf should default to no in code, possibly even upstream
with the next compatibility level revision!

(This one has been bugging me for a decade...)
#1130155#10
Date:
2026-03-11 10:36:13 UTC
From:
To:
What's wrong if postfix tries to send an udp packet to localhost:512
when delivering emails?  It's a privileged port, nothing should be
listening on it on a typical system, - it doesn't really hurt, does it?

Thanks,

/mjt
#1130155#15
Date:
2026-03-11 10:36:13 UTC
From:
To:
What's wrong if postfix tries to send an udp packet to localhost:512
when delivering emails?  It's a privileged port, nothing should be
listening on it on a typical system, - it doesn't really hurt, does it?

Thanks,

/mjt