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    [[ M2 ]] gmail sending stuck and queued when it used to be working

    Opera for Windows
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    • eeeemc
      eeeemc last edited by

      Hi There ,

      Not sure recently M2 prevent sending smtp.gmail.com.

      If I restart Opera, it can send ( sometime ) , if overnight and get back to work in the morning the issue happen again ( mail queued ).

      Looking for solution,

      Thank you
      edmond

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      • aashokkumarsharma
        aashokkumarsharma last edited by

        The queued email problem is a security/authentication issue because the older M2 client does not use modern security protocols (like OAuth2). The solution is to generate and use a Google App Password (a unique 16-character code) in M2's account settings instead of your regular password, which bypasses the security block and allows the SMTP connection to persist.

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          eeeemc 1 Reply Last reply
        • eeeemc
          eeeemc @aashokkumarsharma last edited by leocg

          @aashokkumarsharma

          Thanks and yes ..............

          Gmail App Password Go To Here Create: https://myaccount.google.com

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          • krishnnadutt112
            krishnnadutt112 last edited by

            Having same issue with Opera M2—Gmail emails stuck in queue. Likely caused by SMTP authentication timeout, server limits, or network glitches. Re-authenticating or restarting sometimes helps but no permanent fix yet. Anyone solve this?

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              eeeemc 1 Reply Last reply
            • eeeemc
              eeeemc @krishnnadutt112 last edited by leocg

              @krishnnadutt112 Screenshot - 19_11_2025 , 7_42_54 pm.jpg

              I use this finally and works for me.

              Don't forget to also Set Once Again --> https://myaccount.google.com
              .........to get a new password purely for M2 incoming/outgoing use.

              M2 not using Gmail your real password but above.

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