My Outlook 2007 is sending duplicate emails to certain people. I do not have antivirus installed on my computer. I have gone through every other thread on this site and haven't found an answer: My outbox only shows one message sent but the recipient is recieveing 2 or more. It seems to only be certain recipients, not all. Would this be on their end possibly? I am on a POP3 Account with a SMTP outgoing server. My outgoing server settings are set up as "Requires Authentication" and "Log on to incoming mail server before sending mail".

Check for any forwarding rule is set at outlook or at serverRegards from ExchangeOnline | Windows Administrator's forums

Hello, Following the ManU PhiliP's suggestion. Please check if there is the same issue with owa. Best Regards, Lisa