Can I redirect port 25 with a dynamic dns service?

[richb at pioneer.ci.net (Rich Braun)]

Bill Horne <bill at horne.net> asked:
> I'm using dyndns.org to redirect port 80 traffic to my server, but I'd
> like to get port 25 going again too and I'd like alternatives to
> dyndns.org's Mail Hop service.
>
> Which dynamic DNS services will map port 25 to something else?

I did a google and didn't find a master list of such services.  But in
addition to the $40/year service from DynDNS for which you want alternative
choices, I found that DNSexit.com offers a $16/year service.  (Price depends
on how much spool space you want.)

-rich