Issue: Gmail Smtp Port 465 Not Working 

Internet connection:

• First, check if you are able to access the internet from your computer.
• You need to have a stable internet connection to send the email.

Server details:

• If the Gmail Smtp port 465 not working, open the email client in which you have configured the Gmail account.
• Check if all the server details, including SMTP parameters, are correct.
• The Gmail account’s server information are provided here for your reference.
• Incoming Mail Server - imap.gmail.com (IMAP) or pop.gmail.com (POP)
• Incoming port - 993 (IMAP) or 995 (POP)
• Outgoing Mail Server - smtp.gmail.com (SMTP)
• Outgoing Port - 465
• Authentication - SSL required

Login information:

Double-check the login information of the Gmail account.

Firewall/antivirus:

• An antivirus or firewall program installed on your computer might block the SMTP port.
• Try to set an exception rule for the SMTP service in your antivirus settings.

Windows Defender Firewall:

• In the Windows search bar, type Windows Defender Firewall and choose the same from the search result.
• Click the ‘Turn Windows Defender Firewall on or off’ link on the left panel.
• When the next window appears on the screen, go to the Private Network Settings section and select the checkbox next to the ‘Turn off Windows Defender Firewall’ option.
• Go to the Public Network Settings section, checkmark the box beside the Turn Off Windows Defender Firewall option, and click the OK option and check the error Gmail Smtp port 465 not working.

SMTP port:

Also, you can get assistance from our technical support member in resolving the Gmail SMTP port 465 not working problem. To contact them, click the Call button provided below.