Hi, I checked out PiGate, It is based on Pac-Link Unix.
There are also some limitations that would not make it suitable (Send Only).

I hope that the pac-link software will eventually be included in openplotter with a configuration GUI.
Cheers,
JM.

Thanks, I contacted him.

I found a solution for winlink email on the raspberry pi and it's pretty good. It's called PiGate and you can find it on PiGate.net. It works on a pactor modem or x-tnc or Sound card as far s I can see. The author is Mark Griffith and he was able to put it on a openplotter image. He's working on making it work with Saildocs similar to Airmail. You can contact him through the site and he is very responsive. He's looking for thoughts on functionality for it. Contact him and make him aware I'm not the only one looking for this functionality. :-)

Did you ever get a winlink2k solution on the RPI?

Hi It's Andy Kopac. I am a lic. Ham but not a Ham high priest by all measures. I did a ton of searching for a solution for the holy grail for getting winlink to work on the RPI with Raspbian. You mentioned paclink but it will become obsolete when winlink requires a password login because it does not support it. BPQ is used currently by Ham operators with Winlink. I ran across this guy - Joe, AG6QO. I spoke with him once on the phone. He knows exactly how to make BPQ work with winlink and a email client on a rpi and has done it for his own setup and he is using a RPI2 and a Pactor 2 modem!!!. You got his instructions I sent you in my posting. If you google:Joe AG6QO bpq rpi winlink you will find him.