Open port 25 on PIX

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    Please bear with me, but I am still new to this. I am trying to put in a statement in the PIX that will allow doing telnet on port 25 from a mail server to barracuda services. They do not have a single IP for this, but a range of IPs. They also have an Outbound Hostname of Would the statement I need to put in look like this:
    access-list BORDER permit tcp XX.XX.XX.XX XXX.XXX.XXX.0 eq smtp, where the 2X group is my mail server and the 3X group is the barracuda host. Or can I put in the hostname in lieu of the barracuda host IP range?

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