Department of Planetary Sciences Lunar and Planetary Laboratory
	LPL Central Computing Systems (LCS)

Frequently Asked Questions (FAQ) - Mail

• Start Thunderbird 3.0.
• Click Write.
• Compose a test message to yourself.
• Click Send. If this fails, fix the problem as follows.
• 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.
• Do not check the box next to "Use secure authentication" (uncheck it).
• In the list next to "Connection security:", select "STARTTLS".
• Click OK.
• Click OK.

Brief Explanation:

While a mail server may allow either secure connection (STARTTLS) or secure authentication,
a mail server may not support both methods at the same time.

The Thunderbird 3.0 upgrade process modifies your existing settings to try to use both methods, which will not work.
The above procedure configures your email client to use secure connection only, which the LPL mail server supports.

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Last Updated: 10 December 2009

LPL Webmaster / webmaster