I use Paclink in a system that handles served agency traffic during the times that we aren't actively serving the agency.  E.g., I monitor the hospital winlink address for anything that comes in while the hospital ECC is down. I also monitor my own email on that system.

We just had an exercise at midnight and I realized while sitting in the hospital that my paclink was still picking up email, and I'd have to drive into work to stop it.

It would be good if I could set a different polling interval for different addresses, so that I can get my email every hour but not pick up the outside monitored email more than once a day.

Second, it would be VERY good if I could set a polling interval of longer than 120 minutes. I could live with just one polling interval as long as it was "every 12 hours", but every two hours is still too short for some operations.

And third, it would be most excellent if I could put different polling intervals on different communications systems. E.g., 15 minutes for telnet, 30 minutes for VHF, 60 minutes for an HF system.

We get essentially NO spam over Winlink & never have. I appreciate that others do, so a voluntary white-list is useful. But We (& others) get lots of folks writing to us from our website. They aren't in our whitelist so it's difficult for them to contact us. We publish the //WL2K back-door, but some folks don't understand. Also, it's probably not a good idea to have everyone publishing that back-door...

Because the "high speed" HF Pactor frequency segments in the amateur radio bands are so precious, I do not favor and have never favored an approach that uses anything less than the maximum legal Pactor rates. Hence, I think that any sound card approach and this Express project is counter productive at this time.