[H-GEN] Sendmail and open relay

[Tony Melia (DMS)]

I am running sendmail 8.12 in a redhat 7 box which is working great.  I
configured it to reject mail using normal anti-spam rules.  However, I do
have a need for some remote to send me mails to alert me on backups -
however because these remote servers do not use DNS, sendmail rejects their
mail since it fails reverse lookups.  Is it possible to configure a top
level rule which says allow mail to be received from these hosts if the from
address is allowmail at mydomain.com or something like that?? i.e allow mail
from a certain mail address regardless of the IP it comes from?  Most of
these systems run MS exchange, so exchange's own SNMP engine sends me the
mail.

Regards,
TM


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