Problem with Yahoo mail and outlook
social.technet.microsoft.com › Forums › en-USMar 21, 2012 · once i have a problem with large pop3 email and was doing the same thing, each time download the full mailbox, the problem was the send and receive settings in outlook was set to short time which didn't give enough time to download all email and mark them as downloaded so i uncheck the automatically send and receive also deleted the .pst file and created new one after that i enabled the ...