Some innkeepers and internet service providers prevent you from sending mail, by blocking traffic on port 25. If this is preventing you from sending mail from your laptop, configure your email client program to use port 587 for outgoing mail (instead of the default port 25). This change often fixes the problem.
Here are instructions for configuring several popular email client programs accordingly.
Thunderbird
- Click Tools -> "Account Settings" -> "Outgoing Server".
- Click Edit.
- In the "Server Name:" field, type hindmost.lpl.arizona.edu
- In the "Port:" field, change 25 to 587.
- Check the box next to "Use name and password".
- Type your LPL username in the "User Name:" field.
- Click the radio button next to "TLS".
- Click OK.
- Click OK.
Mac Mail
- Click Mail -> Preferences -> Accounts.
- Type hindmost.lpl.arizona.edu in the "Outgoing Server" field.
- Click "Server Settings".
- Type 587 in the "Server Port" field.
- Click the box next to "Use Secure Sockets Layer (SSL)".
- Select "Password" in the list next to "Authentication".
- Type your LPL username in the "User Name:" field.
- Click OK.
Netscape
- Click Edit.
- Click "Mail & Newsgroup Account Settings".
- In the list on the left margin of the window, click "Outgoing Server".
- Type hindmost.lpl.arizona.edu in the "Server Name:" field.
- Type 587 in the "Port:" field.
- Click the box next to "Use name and password".
- Type your LPL username in the "User Name:" field.
- For "Use secure connection", click the radio button next to "When available".
- In the list on the left margin of the window, click "Server Settings".
- Click the box next to "Use secure connection (SSL)".
- Click OK.
Outlook Express (Windows)
- Click Tools -> Accounts -> Mail -> Properties -> Advanced.
- Next to "Outgoing mail (SMTP)", change 25 to 587.
- Check the box next to "This server requires a secure connection (SSL)".
- Click Apply.
- Click OK.
- Click Properties -> Servers.
- In the "Outgoing mail (SMTP):" field, type hindmost.lpl.arizona.edu
- Under "Outgoing Mail Server", check the box next to "My server requires authentication".
- Click Settings.
- Click the radio button next to "Use same settings as my incoming mail server.
- Do not check the box next to "Log on using Secure Password Authentication"
- Click OK.
- Click Apply.
- Click OK.
- Click Close.
Outlook (Windows)
- Click Tools -> "E-mail Accounts".
- Click the radio button next to "View or change existing e-mail accounts".
- Click Next.
- Highlight your LPL entry in the list.
- Click Change.
- Enter hindmost.lpl.arizona.edu next to "Outgoing mail server (SMTP)".
- Click "More Settings".
- Click the Advanced tab.
- Next to "Outgoing mail (SMTP)", change 25 to 587.
- Check the box next to "This server requires a secure connection (SSL).
- Click OK.
- Click "More Settings".
- Click the "Outgoing Server" tab.
- Check the box next to "My outgoing server (SMTP) requires authentication".
- Click the radio button next to "Use same settings as my incoming mail server".
- Click OK.
- Click Next.
- Click Finish.
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Last Updated: 31 July 2007
LPL Webmaster / webmaster
