This is going to force me to go out & try it at another post office, Dick.
I'm glad that it at least works for me at those two places, especially at my local annex office. He stamps each magazine envelope with the "MEDIA MAIL" red stamp. I've never gotten a complaint from those that I've mailed to. One time though, I did get a bunch back with a stamp that read something like "Returned due to mail carrier not being able to verify source". I guess that the annex closed early and the annex postal employee did not hand the magazines / "MEDIA MAIL" directly to the postal person picking up mail from the annex, so they returned it. I can't figure that one out...
Steve B