Daily Archives: 07/20/2015


Both POP (Post Office Protocol) and IMAP (Internet Message access protocol) allow people to get access to their email from a remote server; however, that is where most similarities end. POP simply downloads email to your computer, and usually (but not always) deletes the email from the remote server. The […]

SMTP Ports

SMTP by default uses TCP port 25. The protocol for mail submission is the same, but uses port 587. SMTP connections secured by SSL, known as SMTPS, default to port 465 (nonstandard, but sometimes used for legacy reasons).

Change SMTP Port in MS Outlook

If you can’t send email and you’re using a commercial ISP , they may be blocking SMTP port 25. This port is standard for sending email. But it’s also standard for sending spam, so ISPs often block it. In order to send email again, you’ll have to change to a […]

Windows 8-Can’t create file in the C drive root directory

In Windows 7 or 8 (may be Vista), users (even administrators) are not allowed to create files in the C drive root directory, otherwise, an error message like “A required privilege is not held by the client” or “access is denied” will be prompted. To fix it, just turn off […]