So implicated are Microsoft, synchonoss.net and btinternet.com.
Alas, I can't think of a way to determine which one. Well, I guess we could rule out (or convict) Microsoft if one of you were to try a different client app (e.g. Thunderbird).
Sorry, I don't use any other email client so can't help there. I don't know if this has any bearing on the issue but BT has been the subject of some problems in delivery and syncing mail this past week or so. From the little I've read about it, it seems to point to Yahoo servers.
Although things are better now (previously had no access at all) I am still having glitches with my mail being delivered or alternatively double or triple drops of repeat mail.
Sue
