On Monday, July 22, 2019 at 6:26:03 PM UTC-4, wrote:
I have sent several messages through Glidersource.org inquiring about some instruments listed in their classified ads. Glidersource has sent me messages saying that the inquiry has been forwarded to the seller, but I have not received any response from him. Anybody else run into a problem like this?

And, yes, the ad listing is still up.

Try responding to your own ad.

I've gotten inquiries recently, I think the system works. You may have a filter trashing your incoming alert as UCE.

T8