I need help with K9 mail. I have three accounts, one of which is a Verizon account. I can't find any mail on the gmail account and have trouble with the Verizon account sending. I'm also having a devil of a time opening pdf attachments. They all seem to go to a file "/mnt/sdcard/PDF". I can't delete them and I can't open them. It looks like all the space is full. Don't tell me to go to Verizon. They know absolutely nothing except facebook and twitter. Totally useless.
TIA
TIA