#  These rules check the 2821 MAIL FROM in the envelope for validity;
#		the MAIL FROM must require a valid mailbox or NULL;
#		make certain "Perform MAIL FROM Lookup When Empty = 0" in Denes Preferences to disable lookups on NULL MAIL FROM values
#			or set the "MAIL FROM Domain When Empty" preferences to a valid domain
#
BogusMAILFROM	%fd	MX	not_mx_host_ip_exists	*	2	2	error_log_entry	Denes: No MX record for %fd from %hi (%ip). Mail from <%fu@%fd>, recipient <%ru@%rd> using rule "%rn" in %lm ms
BogusMAILFROM	%fd	MX	not_mx_host_ip_exists	*	2	2	refuse	550 5.7.1 RFC 2821 requires a valid mailbox as a MAIL FROM parameter (supplied "%fe"). Contact your postmaster to correct this problem.