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Showing posts with label email. Show all posts
Showing posts with label email. Show all posts

Monday, September 20, 2010

What can I do if my ISP blocks the regular SMTP port 25?

Some ISPs force their Customers to use strictly defined SMTP servers and charge them for this service. This is why they deny outgoing connections to port 25, which is the most commonly used port for the Internet SMTP servers.

We have a solution for this - there is a SMTP server which is running on port 2525, which is most likely not to be denied. You just will have to set your local mail client (Outlook, Thunderbird, Eudora, etc) to connect on it. This is usually done in the Account configuration page.

How to setup email in Outlook Express?

In order to set up an Outlook Express e-mail account, you need to:
- Start Outlook Express and click on the Tools menu. Then choose Accounts.
- Click Add Account and select Mail.
- On the Your Name page type your name as you want to appear to your recipients. Click Next.
- Submit the e-mail address which the others will use to send email messages to you. Click Next.
- On the E-mail Server Names page fill in: Incoming mail server (POP3 server): yourdomain.com
Outgoing mail server (SMTP server): yourdomain.com
You also need to set the SMTP port to 25 or 2525.
- Type Username: You need to use the full e-mail account name. For instance: you@yourdomain.com.
- Click Finish.
You are done with setting an Outlook Express e-mail account.

How to check if port 25 is open?

If you get an error that your mail server is not found/not responding, and everything else on your email client is configured properly, most likely the problem is due to blocking on port 25 by your ISP.

If you are using Microsoft Windows:
1) Click the Start Menu button.
2) Click Run.
3) Type:
"cmd" (without the quotes) and press the Enter button.
4) When the command prompt appears, type the following:
"telnet yourdomain.com 25" (without the quotes) and press the Enter button.

If you are using Linux or MAC, just open a console and type "telnet yourdomain.com 25" (without the quotes) and press the Enter button.

In both cases described above, you must see a welcome message, which states that you are connected to an SMTP server.