Troubleshooting Problems Connecting to Mail Servers

 Last reviewed: September 4, 1997
Article ID: Q154578
The information in this article applies to:
  • Microsoft Internet Mail and News version 1.0 for Windows 95

SUMMARY

This article describes troubleshooting steps you can use to help you diagnose problems that may occur when you connect to your Simple Mail Transport Protocol (SMTP) or POP3 mail server with Internet Mail.

MORE INFORMATION

SMTP and POP3 Server Settings

Microsoft supports configuring Internet Mail to connect to one SMTP and one POP3 mail server. The default port addresses for SMTP and POP3 connections in Internet Mail are 25 and 110, respectively.

If you experience problems connecting to your mail servers, make sure that your SMTP and POP3 server port settings are correct. You can check your current port address settings or configure Internet Mail to use different port addresses using the following steps:

  1. Click Options on the Mail menu in Internet Mail, click the Server tab, and then click Advanced Settings.

  2. Change the Outgoing Mail (SMTP) Server and Incoming Mail (POP3) Server settings as needed, click OK, and then click OK again.

  3. Close and restart Internet Mail.

TCP/IP Settings

Use ALL of the following troubleshooting methods to ensure that your configuration settings are correct and that your dial-up connection is functioning properly.

Method 1:

Test the integrity of your local Transmission Control Protocol/Internet Protocol (TCP/IP) stack integrity, by pinging the appropriate (loopback) 

Internet Protocol (IP) address.   To do this, follow these steps:

  • Click Start, point to Programs, and then click MS-DOS Prompt.

  • Type the following command at the command prompt: 

          ping 127.0.0.1

    If you cannot ping this address, remove and reinstall the TCP/IP protocol.

    For information about TCP/IP, click Start, click Help, click the Index tab, type "TCP/IP" (without quotation marks), and then double-click the TCP/IP topic you want to view.

    Method 2:

    Test your TCP/IP settings by pinging the Microsoft File Transfer Protocol (FTP) server. To do this, follow these steps:

    1. Click Start, point to Programs, and then click MS-DOS Prompt.

    2. Type the following command at the command prompt: 

            ping 198.105.232.1

      If you can successfully ping the IP address in Method 1, but you cannot ping this address, check your TCP/IP settings to ensure that TCP/IP is properly configured.

      For information about TCP/IP, click Start, click Help, click the Index tab, type "TCP/IP" (without quotation marks), and then double-click the TCP/IP topic you want to view.

    Method 3:

    Make sure that Domain Name Service (DNS) resolution is functioning by pinging the Microsoft FTP server. To do this, use the following steps:

    1. Click Start, point to Programs, and then click MS-DOS Prompt.

    2. Type the following command at the command prompt: 

            ping ftp.microsoft.com

      If you can successfully ping the IP addresses in methods 1 and 2, but you cannot ping this address, check your DNS settings to ensure that DNS is properly configured.

      For information about DNS, click Start, click Help, click the Index tab, type "DNS" (without quotation marks), and then double-click the DNS topic you want to view.

    Method 4:

    Verify that mailer daemons are responding on their specified ports by using Telnet commands. To do this, use the following steps:

    1. Click Start, point to Programs, and then click MS-DOS Prompt.

    2. Type each of the following command and press ENTER after each one: 

            telnet <smtp_name> <port_number>


            telnet <pop3_name) <port_number>

      where <smtp_name> and <pop3_name> are the names of your SMTP and POP3 servers, and <port_number> is the port address used by your SMTP and POP3 servers.

      If you do not receive a "ready" response from these Telnet commands, try to ping the host names of the SMTP and POP3 servers individually. If you cannot ping the host names of the SMTP or POP3 server, try using the numeric equivalents, if you know them.

      If you cannot ping the numeric addresses, but methods 1 through 3 are successful, contact your Internet service provider to verify that the mail servers are available and that your mail server information is correct.

    • KBCategory: kbnetwork kbtshoot
    KBSubcategory: inetmailw95
    Additional reference words: 1.00
    Keywords : inetmailw95 kbnetwork kbtshoot
    Version : 1.00
    Platform : WINDOWS

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    Last reviewed: September 4, 1997
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