Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[drmark12pa]

How can a person change the port used? (I'm not super familiar with how ports work in the first place but can follow the basic instructions for opening certain ports on my router and such)
Also, how can a person find out if their service (I have Charter Cable as my internet provider) are blocking certain ports?

[gunrunnerjohn]

Look at the setup page for email alerts, the port is right there.  The issue with the DNS-321 is they don't allow a port change.

[drmark12pa]

Oops... I should have phrased that differently... How can a person change the port to a port that will work with their ISP?  I have used several different port numbers (see my first post) but none are working with Gmail... So, I wonder if my ISP (Charter Cable) is blocking use of these port numbers that are used by Gmail?  That is where I am confused.... How do the port numbers affect whether my email goes through or not....

[dosborne]

You can't just pick ports at random. A server process listens on a specific port for a connection to be made. In the case of mail, port 25 is the common default for connecting. For web traffic it is port 80, etc. To reduce spam proliferation, ISPs block the common ports for mail forcing the subscribers to send mail through the ISPs mail server via an authenticated account. If the ports to connect to gmail are blocked, then there is essentially nothing you can do other than use the ISPs mail server information.