Hi - I can't figure out how the email inbox works on the Evo. I want the emails in my inbox to hang around for a while, so I went into the settings and selected 30 days as the download option. There was a message sent on 10/23 that disappeared today. I read it again this morning, but by 6pm I noticed it was gone. Not moved to the trash, just gone. I really wanted this one to stay in the inbox. Emails seem to disappear on a regular basis... they don't always go away as quickly as the one just mentioned. Is it possible to set Android to retain the inbox emails indefinitely...at least until I decide they should go away?? I assume I'm doing something wrong! Sprint is the carrier, BTW. The email server is Comcast. Thanks!