[Stratoscope]

It sounds like several of you know more than I do about this, so I'm curious... I'm in the habit of using Priority Mail for things like this, because I can print out a mailing label at home and get a tracking number with delivery information.

Assuming I put the tracking number in the letter as you suggest, is there still an advantage to using certified mail and a green return receipt instead? Or is Priority Mail equally good?

[ams6110]

Priority Mail AFAIK doesn't require a signature for receipt. It does provide tracking, but that's less rigorous proof than the actual return receipt.

[Stratoscope]

Thanks. Priority Mail does have a signature-required option, which makes me curious whether that is as good as a return receipt.