Messaging cannot send email via gmails

All of a sudden I can't send emails using gmail accounts but normally receive emails and all emails sit in the Outbox.  With other messaging portals, such as outlook, yahoo, etc., they work very well.  Can someone Advisor to diagnose the problem.  Thank you!

Open connection doctor in Mail and verify that the server is OK.

Open the Mail preferences and Accounts tab select the account Gmail and account information tab, verify that you have the correct SMTP in the area. If so, disable the account, and then turn it back on. Test again and see if it works.

If it still does not work, turn off the new account. Open Keychain preferences and delete the passwords for the gmail server. Return to the Mall and re - activate the account and test.

If all else fails, delete the account. Open Internet accounts in system preferences and make sure that the account has been removed. Add the account back and test.

Tags: Mac OS & System Software

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