I know that I may not eat general wine from the store (as opposed to wine that's certified kosher). Can I also not derive other benefit from it? Specifically: Can I give it as a gift to a non-Jewish neighbour?
I once asked at an ask-the-rabbi site, though I don't remember which one, whether I could "re-gift" a bottle of non-kosher wine I'd been given. I was told that it was ok to pass the bottle along so long as I made it clear that I was passing along something I'd received but could not use. (In other words, don't pretend I was being especially generous by buying the recipient something.)
In searching for support for that suggestion I found: the Institute of Dayanim says you may pass it along, and they give the following citations:
The CRC says it is controversial but there is room for leniency. They do note a stringency, though they seem to be talking about purchasing such wine as a gift and disposing of an unwanted gift might be different:
Since the matter is controversial, I don't think it would be wise to actually buy such wine (with the intent of giving it as a gift). But if you happen to have some already, it looks like there are alternatives to pouring it down the sink.