Do any of you have Exchange Server 2016 running ESET anti-virus software for Exchange? Access to e-mail with Outlook simply stopped around noon yesterday for no apparent reason. Having spent last night and into the early hours of this morning on to MS Technical Support (in Bombay), as a last move, they advised the removal of ESET which, I hasten to add I was extremely reluctant to do. The removal process took an abnormally long time, but after a re-boot, all was back working again. (Apart from a ton of mail that would otherwise have been stopped!) Has anyone experienced similar? MS seemed quite confident, as if we were not the first to have such an issue. ESET themselves are baffled, but with their support, we will be trying a re-install later today. George