Anyone having a solution to M/soft Office Outlook suddenly sending up to 30 copies of e-mails. It only seems to do so when there is an attachment, a text only has no problem. This only started to happen just a few weeks ago when my usual group of recipients informed me of it, I have no problem whatsoever receiving no matter what the size of the e-mail. My e-mail company based in Glasgow has no idea how I'm doing it but confirmed they have no problems but also confirmed that in the past 7 days I've sent 967 e-mails, my sent box on Outlook says I've sent just over 30. None of the recipients report any problems with these e-mails - just the amount of them. I've done a thorough deep antivirus scan a few times and all comes up clean each time, I've reinstalled Outlook with the repair facility but the problem persists, if I use M/soft Mail I don't get the problem, so it all points to Outlook somewhere along the line although there is still the possibility of a virus somewhere that seems perfectly happy to sit in my computer and not travel to someone else's but I have absolutely no problem with my computer in any other area's. I'm deliberating deleting the entire Office installation and reinstalling but know that might no cure the problem, so any help or suggestions would be really appreciated.

Do you have any Norton Anti Virus software installed and marked to scan outgoing messages? In case, turn that off

Sending duplate email messages can be the result of Norton Anti-Virus and Outlook combined.

Thanks Webfact, I don't use Norton but I do use Bitdefender and upgraded to the new version at the same time as the problem started, seems default setting was to check outgoing mail, now unchecked it and the problem is solved, so many thanks for your suggestion.

Do you have any Norton Anti Virus software installed and marked to scan outgoing messages? In case, turn that off

Sending duplate email messages can be the result of Norton Anti-Virus and Outlook combined.