Hello, experts. I am using MS Outlook for so many days, but recently, I’m noticing the 0x800ccc0b Outlook 2016 error while trying to send an email to anyone. Suggest a method to fix the error. Thank you.
Hello. The 0x800ccc0b Outlook 2016 error occurs because of client email misconfiguration or ISP blocking the access port 25. We have listed some solutions to fix the error; follow them.
Method 1:
• Go to MS Outlook.
• Click on tools, then go to the account settings.
• Now, right-click on the email address you are using.
• Click on more settings, go to advanced.
• Change the outgoing SMTP server port 25 to 26 and choose TLS encryption.
• Click on ok and follow the prompts.
Method 2:
Firewall settings
• Search for Firewall and click on it.
• On to the left-hand side, go to “Allow an app or feature through windows firewall.”
• Select change settings.
• Now enable Outlook.exe and msimn.exe for public and private networks.
• Apply the changes made and restart the PC.
