Gmail SMTP Error Code 101

Gmail SMTP Error Code 101

Solve the Gmail SMTP error code 101 using the solutions mentioned below on the Gmail account.

Check port numbers:

  • Step 1: The Gmail configuration settings can be incorrect, and if the port numbers assigned to the mail servers are wrong, the server does not connect.
  • Step 2: Open the email account settings on an email client (like Outlook, Thunderbird), open the Advanced Settings window and verify whether the port numbers are correct for POP or IMAP (Incoming) Server & SMTP (Outgoing) server. Click here to learn more about Gmail SMTP Settings

Use encrypted service:

  • Step 1: If the server cannot connect within a specific time and the error message shows “Timed out connection,” then there is an authentication problem in the Gmail account. The encryption protocol SSL port number for the incoming server is 995 or 993, and the outgoing server port number is 465.

Provide access to clients:

  • Step 1: If the Gmail configuration is secured with the Two-step verification feature, make sure to use the correct app password when you access the Gmail account on a third-party email client.
  • Step 2: Go to the Gmail account settings and enable the Allow less secure apps option. This change allows the email client to connect with the Gmail mail servers.

Correct server hostnames:

  • Step 1: In the advanced settings menu of Gmail on the email client, check if the right server name is used. Change the server names to “pop.gmail.com” or “imap.gmail.com” for incoming server, and “smtp.gmail.com” for the outgoing server. If still you are facing Gmail SMTP error code 101 issue, click the call button for remote assistance.

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