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Question: Email in Outbox flashes on screen but doesn't send

I can't send email. When I try, the email goes into the Outbox but then flashes on the screen every few seconds but it doesn't send. How do I fix this?

iMac, macOS High Sierra (10.13.1)

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See some articles If you can’t send or receive email on your Mac - Apple Support

Mail Settings Lookup - Apple Support

Mail outgoing server settings - Apple Support

Automatically manage connection settings in Mail on your Mac - Apple Support

If major issues are in the mail application , delete the account and once again configure Set up Mail with email accounts - Apple Support

Also make sure you have high network speed , the attachment size also counts .

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Question marked as Apple Recommended

Nov 11, 2017 2:21 AM in response to spartantartan In response to spartantartan

See some articles If you can’t send or receive email on your Mac - Apple Support

Mail Settings Lookup - Apple Support

Mail outgoing server settings - Apple Support

Automatically manage connection settings in Mail on your Mac - Apple Support

If major issues are in the mail application , delete the account and once again configure Set up Mail with email accounts - Apple Support

Also make sure you have high network speed , the attachment size also counts .

Nov 11, 2017 2:21 AM

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Question: Email in Outbox flashes on screen but doesn't send