If you are able to receive emails but get an error when sending them, then there is a high probability that your ISP (internet service provider) is actively blocking the default SMTP (outgoing mail server) port 465.
TESTING FOR ISP BLOCK:
Here is some steps for testing to see if your ISP is actively blocking outgoing email port 465.
WINDOWS USERS:
1. On windows machines you need to access the COMMAND PROMPT program. This may vary based upon your version of windows and permissions you are setup for.
Go to START > PROGRAMS > ACCESSORIES > COMMAND PROMPT
or
You can also click START > then in the search bar enter “command” and at the top of the search results you should see “COMMAND PROMPT” which you can click to access.
You should see something like this:
C:\>
or
C:\Users\YourComputerName>
2. TESTING: Enter the following:
telnet yourdomain.com 465
And then click ENTER button. For example:
C:\Users\YourComputerName\ telnet yoursite.com 465
3. EXAMINING RESULTS:
If port 465 is blocked you will get a successful 220 response (text may vary) similar to the following:
C:\Users\YourComputerName\ telnet yoursite.com 465
220-SERVERNAME SMTP EXIM
_
That indicates a successful connection to port 465, meaning your ISP is NOT blocking this port and it is an issue with your email account settings on your computer.
If port 465 is blocked you will get a connection error similar to below (or no response at all):
C:\Users\YourComputerName\ telnet yoursite.com 465
Connecting to smtp.yoursite.com…Could not open connection to 465: Connect failed
MAC USERS:
The following are instructions for MAC users.
1. For MAC users you have a similar tool called the Terminal tool, located in the Applications / Utilities folder.
Access this then move onto step 2 below.
2. TESTING: Enter the following:
telnet yourdomain.com 465
And then click ENTER button. For example:
Brads-MacPro: maxprog$ telnet yoursite.com 465
3. EXAMINING RESULTS:
If port 25 is blocked you will get a successful 220 response (text may vary) similar to the following:
Brads-MacPro: maxprog$ telnet yoursite.com 465
Trying to connect…
Connected to yoursite.com
Escape character is ‘^]’.
220-SERVERNAME SMTP EXIM
_
That indicates a successful connection to port 465, meaning your ISP is NOT blocking this port and it is an issue with your email account settings on your computer.
If port 465 is blocked you will get a connection error similar to below (or no response at all):
Brads-MacPro: maxprog$ telnet yoursite.com 465
Trying to connect…
Connected to yoursite.com
Escape character is ‘^]’.
Connection closed for foreign host.
OPTIONS IF ISP BLOCK
If the test does fail, then you have the following options available to you:
a. Contact your ISP (internet service provider): Let them know that your testing showed they are blocking your outgoing emails from port 465. Explain the situation, your testing from above, and ask that they have that block removed.
b. If you have tried all of the above, and your ISP refuses to open port 465 for your computer / office, then contact us back and we will help with another solution.
