The use of /P, /M and /MM is problematic at the moment. APRS email does not work if you use either '-' or '/P' or '/MM'. Part of the problem is that you need an entry in the database for every different callsign.. Anyway, I would advise only to use your callsign without extensions when sending emails... Otherwise the sender will be missing and your email may be refused by the ISP. 73, Rein PA0R -- http://pa0r.blogspirit.com