prog mailer (/usr/sbin/smrsh) exited with EX_TEMPF

[Cameron Beattie]

I have a program (rt-mailgate) that I wish to run when mail arrives at a 
certain mailbox. I did the following:
-set up an alias: rt-dev: "|/etc/smrsh/rt-mailgate --queue general --action 
correspond --url http://my.company.com"
-ran newaliases
-set up a symlink: cd /etc/smrsh; ln -s /bin/rt-mailgate rt-mailgate

When I send a mail to rt-dev I see the following when I run mailq
Deferred: prog mailer (/usr/sbin/smrsh) exited with EX_TEMPF)
"|/etc/smrsh/rt-mailgate --" etc...

Can anyone offer some advice on how to resolve this?

Regards

Cameron