postconf: warning: /etc/postfix/master.cf: unused parameter: smtpd_helo_restriction=

[Vitali Kari]

Description: Ubuntu 12.04.4 LTS
Release: 12.04

Postfix 2.9.6-1~12.04.1

even if i configure parameter
smtpd_helo_restrictions = permit_mynetworks reject_unknown_helo_hostname
in main.cf

the command postconf warns me about:
postconf: warning: /etc/postfix/master.cf: unused parameter: smtpd_helo_restriction=

The interesting thing on this is, there is really no option
smtpd_helo_restriction=
but
smtpd_helo_restrictions=
;-)

[Ralf Hildebrandt (ralf-hildebrandt)]

Not a bug.
smtpd_helo_restriction is a typo, it must be smtpd_helo_restriction*s* (with an s at the end!)
Postfix emits a warning, since typo'ed parameters have no effect!

[Vitali Kari (vitali-kari)]

oh sorry, it was my mistake.
i was too fixated on main.cf, but the type was in master.cf

typo is about 3 years old! this warning came out after postfix update 2.7.0 ->2.9.6

can be closed, thank you for the hint!