Westell Versalink Firewall-User Defined Rules Help

[bozo4981]

HW Firewall-user define rules help
I have a Westel Versalink modem\router that has a firewall, and have had it set to "highest" setting for over a year, with no problems.

I recently I could not send mail (recieve was fine), so through troubleshooting with my host, I changed the outgoing port to 587, per their suggestion. Still couldn't send mail, until I lowered the FW to lowest setting.

There is settings for, highest, medium, lowest, none, & custom. For h,m,l setting, there is the ability to "edit", where it takes you to a window to see & edit the "user defined rules". Here are the rules for the medium setting

:title [ Security Level Medium OUT rules ]

begin
# Protocol Match conditions
RulesPass
pass to port 80 >> done
pass from port 80 >> done
pass protocol udp, to port 53 >> done
pass to port 20 >> done
pass from port 20 >> done
pass to port 21 >> done
pass to port 23 >> done
pass to port 110 >> done
pass to port 119 >> done
pass to port 143 >> done
pass to port 220 >> done
pass to port 25 >> done
pass to port 443 >> done
pass to port 500 >> done
pass to port 587 >> done...Line I added
pass protocol 50 >> done
pass protocol tcp, from addr %LANADDR% >> state, done

# Failed to match
RulesDropNETBIOS
drop to port >= 135, to port <= 139 >> done, alert 4 [Dropping NETBIOS Traffic]
RulesDrop
drop all >> alert 1 [ Packet to be dropped unless Service enabled ]

end

I tried adding the line in red above, hoping that would allow me to send mail, but that did not work either.

Is there a "rule" that I could insert to allow sending mail, with a higher level for the FW?