I posted earlier and thought I had solved the problem. Gmail had changed pop3 to imap, I changed it back to pop3 and thought all was well. Problem is still there and is outlined in text below to gmail forum. Can you assist? Jack
About 3 weeks ago I tried gmail for a day. Gmail indicated they would be transferring my incoming email to gmail from my POP3 server. I use thunderbird and shawmail. After two days I decided I didn't like gmail and closed my gmail account (jacklitbc). Emails did not appear in my old server. It had been changed from POP to IMAP for gmail which is normal so I changed it back to POP. I get some emails but others are received but disappear from the server. This seems to be random.
What I think is happening is somehow gmail is still accessing my account along with my TB client. If gmail accesses if first it is transferred to gmail and I never see it. If TB accesses is first it appears in my client. Regardless of the settings on TB all messages are removed from my server after a few minutes. (I can access them by using the "View deleted messages".
Is this possible? If so how do I stop gmail from contacting my server. I probably should have used a different method of stopping gmail.