Outlook 2007 won't send email, get Error 0x80070057

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Glenn Florida

I use gmail, with my gmail routed to Outlook on my computer as my interface to gmail. When I send email in Outlook 2007 on Vista OS, I get error 0x80070057:

" Task [my email address]- Sending' reported error (0x80070057) : 'Could not complete the operation. One or more parameter values are not valid.'"

I can receive message just fine, but sending does not work. The messages I try to send don't send, but they are not stuck in the outbox either. They show up in the " sent" folder, but go nowhere else.

I tried addressing straight from the address book (no auto-complete), and that doesn't seem to help either.

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
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