Thursday, July 03, 2008
Read Your E-mail
Edit your Email Account(s)
Setup instructions
Port 25 Blocking

Can't send out Email but can receive E-mail?

Many ISPs are blocking what is called "Port 25" which is the port used to send e-mail. They are doing this to cut down on the amount of spam that is sent from their networks.

All e-mail sent via the Internet is routed through the port 25, the channel used for communication between an e-mail client and an e-mail server. Even though port 25 blocking will probably become an industry standard, however, the filter can create problems for e-mail servers and block legitimate e-mail as well as spam.

Port 25 blocking allows ISPs to block spam sent out through their networks, but it tends to punish the innocent that have a need to send through e-mail servers other than those belonging to their ISP. The ISPs that block port 25 require their SMTP server to be used instead of the remote SMTP server or a SMTP server running on your computer.

A current list of ISP's blocking Port 25 are;

AOL
AT&T
BellSouth
CableOne
Charter.Net
Comcast
Earthlink
MediaOne
Mindspring
MSN
NetZero
PeoplePC
Verizon

To overcome this problem, CFWebmasters allows communication over additional ports 2525 and 689.

To setup an alternative port in Outlook you can follow these instructions. 

Step 1. 
Open Outlook

Step 2.
Click on Tools,  then the E-mail Accounts option.  *NOTE* if you don't see "E-mail Accounts" click on the double down arrows at the bottom of the menu.

Step 3.
When the Email Accounts window opens, select View or change existing e-mail accounts, then click Next.

Step 4.
You will see a box that lists your current Email accounts.  Select your account from the list the click Change...

Step 5.
Click on "More Settings..."

 

Step 6.
Click on the Advanced Tab and in the "Outgoing server (SMTP):" section change 25 to 2525. Click OK.

Step 7.
Click the Next button to return to the E-mail Accounts Window.  Click Finish then press Send & Receive.  This completes the setup.

If you have any problems or encounter any errors please give us a call at 910-392-9887, we'll be glad to walk through it with you over the phone.