Why did my outgoing mail stop working?

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Some ISPs have recently started using anti-spam technology that makes it more difficult for their customers to connect to other companies' mail servers.

If your outgoing email sent through Tiger Technologies suddenly stopped working (but your incoming mail still works without problems), you should first try deleting any messages in your mail program’s Outbox, then restarting your computer.

If that doesn’t help, your ISP has probably started blocking most outgoing mail connections from your computer. The instructions below will help you update to our recommended outgoing mail settings, solving the problem.

We should mention that our current email setup instructions already include steps that avoid this problem. The instructions below are only needed for customers who originally set up their email program using an older version of our instructions published many years ago, or who inadvertently skipped a step when setting up their outgoing mail.

Working around the problem

You can make a fairly simple change to your mail program settings that will bypass the ISP blocking. The change makes sure your mail program is sending outgoing mail through our "mail.tigertech.net" servers using "port 587" instead of "port 25" (ISPs only block port 25, not port 587).

The rest of this page explains how to make this change for some common mail programs.

iPhone or iPad

See our Verifying iPhone or iPad Mail Settings page to verify that it’s set up correctly for outgoing mail.

Outlook 2016 for Windows

See our Verifying Outlook 2016 or 2019 Settings on Windows page to verify that it’s set up correctly for outgoing mail.

Outlook 2016 for Mac

See our Verifying Outlook 2016 or later Settings on a Mac page to verify that it’s set up correctly for outgoing mail.

Outlook 2013

See our Verifying Outlook 2013 Settings page to verify that it’s set up correctly for outgoing mail.

Outlook 2011 for Mac

See our Verifying Outlook 2011 Settings page to verify that it’s set up correctly for outgoing mail.

Outlook 2010

  1. Click the File tab, then click the Account Settings button.
  2. Highlight the account you want to change, then click Change to open the settings window.
  3. Make sure the "Outgoing mail server (SMTP)" is set to: mail.tigertech.net
  4. Click the More Settings button, then choose the Outgoing Server tab.
  5. Make sure that My outgoing server (SMTP) requires authentication is chosen.
  6. Make sure Use same settings as my incoming mail server is chosen.
  7. Choose the Advanced tab.
  8. If Outgoing server (SMTP) is 25, change it to 587. (If the port number is already 587, or another number like 465, do not change it.)
  9. Click OK to close that window, then Next, Close and Finish to close all the settings windows.

You should now be able to send outgoing mail again.

Outlook 2007

  1. Click Tools, then Account Settings from the menu bar.
  2. Highlight the account you want to change, then click Change to open the settings window.
  3. Make sure the "Outgoing mail server (SMTP)" is set to: mail.tigertech.net
  4. Click the More Settings button, then choose the Outgoing Server tab.
  5. Make sure that My outgoing server (SMTP) requires authentication is chosen.
  6. Make sure Use same settings as my incoming mail server is chosen.
  7. Choose the Advanced tab.
  8. If Outgoing server (SMTP) is 25, change it to 587. (If the port number is already 587, or another number like 465, do not change it.)
  9. Click OK to close that window, then Next and Finish to close the settings window.

You should now be able to send outgoing mail again.

Outlook 2003 or Outlook 2002

  1. Click Tools, then E-Mail Accounts from the menu bar.
  2. Choose View or change existing email accounts, then click Next.
  3. Highlight the account you want to change, then click Change to open the settings window.
  4. Make sure the "Outgoing mail server (SMTP)" is set to: mail.tigertech.net
  5. Click the More Settings button, then choose the Outgoing Server tab.
  6. Make sure that My outgoing server (SMTP) requires authentication is chosen.
  7. Make sure Use same settings as my incoming mail server is chosen.
  8. Choose the Advanced tab.
  9. If Outgoing Server (SMTP) is 25, change it to 587. (If the port number is already 587, or another number like 465, do not change it.)
  10. Click OK to close that window, then Next and Finish to close the settings window.

You should now be able to send outgoing mail again.

Outlook Express, Outlook 2000 or Outlook 98

  1. Click Tools, then Accounts from the menu bar.
  2. Highlight the email account you wish to change, then click Properties.
  3. Click the Servers tab.
  4. Make sure the Outgoing mail (SMTP) box is mail.tigertech.net
  5. In the Outgoing Mail Server section, make sure My server requires authentication is checked.
  6. Press the Settings button and make sure Use same settings as my incoming mail server is selected.
  7. Press OK to close the Settings window.
  8. Click the Advanced tab.
  9. If Outgoing mail (SMTP) is 25, change it to 587. (If the port number is already 587, or another number like 465, do not change it.)
  10. Click OK to close the Properties window, then click Close to close the "Internet Accounts" window.

You should now be able to send outgoing mail again.

Entourage

  1. Click Tools, then Accounts from the menu bar.
  2. Highlight the email account you wish to change, then click Edit.
  3. In the Sending Mail Section, make sure the SMTP server is: mail.tigertech.net
  4. Click on the Click here for advanced sending options button.
  5. Change the default SMTP port and authentication settings:
    • Make sure the Override default SMTP port option is chosen.
    • If Outgoing mail (SMTP) is 25, change it to 587. (If the port number is already 587, or another number like 465, do not change it.)
    • Make sure that SMTP server requires authentication is checked.
    • The option for Use same settings as my receiving mail server must also be checked.
  6. Click the small square in the top-left of the "Advanced Sending Options" window to close it, then click OK to close the main "Edit Account" window.

You should now be able to send outgoing mail again.

Eudora 6.2

  1. Locate your email address in the Persona section of the main Eudora account window. (The Persona section is in the upper-left of the Eudora window; if you don't see it, choose Personalities from the Tools menu to make it visible.)
  2. Right-click on the account and choose Properties from the menu that appears.
  3. In the Generic Properties tab of the resulting window:
    • Change the SMTP Server name to mail.tigertech.net
    • Check the Authentication allowed checkbox.
    • Make sure the Use relay personality, if defined checkbox is not checked.
    • Change the Secure Sockets when Sending menu to Required, Alternate Port.
  4. Click OK to close the "Account Settings" window.

You should now be able to send outgoing mail again.

Mozilla Thunderbird 1.5 / 2.0 / 3.0

  1. Open the Tools menu and click Account Settings.
  2. First, make sure that "Outgoing Server (SMTP)" is highlighted in the left column (it may be at the bottom of a long list).
  3. If no SMTP server has yet been defined, click the Add button on the right side to create a new outgoing server. If you want to correct the settings for an existing SMTP server, then select it in the list in the main part of the window and click the Edit button.
  4. Set these values in the "Settings" area of the "SMTP Server" window:
    • Description: (your email address)
    • Server Name: mail.tigertech.net
    • Port: 587
  5. Set these values in the "Security and Authentication" area of the "SMTP Server" window:
    • Make sure that *Use name and password" is checked.
    • User Name: (your email address)
    • Use secure connection: Choose the TLS, if available option. (In Thunderbird 3, choose STARTTLS.) This enables a secure connection, which ensures that anyone who can eavesdrop on your Internet connections (such as a neighbor with a WiFi card) won't be able to view your password or the contents of your email. (You can also choose the No option, in which case your email will not be encrypted while being downloaded from our servers.)
  6. Click OK to close the "SMTP Server" window.
  7. Click OK to close the "Account Settings" window.

Other E-Mail Programs and Devices

Other programs or email capable devices should also have a way to:

  1. Make sure that mail.tigertech.net is used for outgoing mail
  2. Change the outgoing mail (SMTP) port number from 25 to 587
  3. Turn on "authentication" for outgoing mail. Use your full email address as the username and your normal email password.

These settings are often in an "advanced settings" window. If you can't find how to do it for your mail program, contact Tiger Technologies and let us know the name and version number of the program you're using, and we'll do our best to help.

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