Bug 63677 - Error mailing to local users if username contains uppercase chars.
Error mailing to local users if username contains uppercase chars.
Product: Red Hat Linux
Classification: Retired
Component: sendmail (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Thomas Woerner
David Lawrence
Depends On:
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Reported: 2002-04-17 08:11 EDT by Need Real Name
Modified: 2007-04-18 12:42 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2004-01-15 06:09:43 EST
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Description Need Real Name 2002-04-17 08:11:46 EDT
Description of Problem:
If I mail to a local user that has caps in the username like "Freaks", the mail 
program gives the error "Freaks... User unknown", even if Freaks is a valid 
system user.  When using usernames that dont contain uppercase characters, 
this error doesn't occur.

Version-Release number of selected component (if applicable):

How Reproducible:
Create a user with uppercase characters and try to mail him (using "mail 

Actual Results:
The folowing error: 
"Freaks... User unknown
/root/dead.letter... Saved message in /root/dead.letter"

Additional Information:
Comment 1 Need Real Name 2002-07-13 14:17:05 EDT
i have the same Problem
Comment 2 Thomas Woerner 2004-01-15 06:09:43 EST
I am sorry this problem can not be solved. You should only generate
accounts with lowercase characters. 

Example: You are having two users: Freak and freak. Who should get the
emails for "fReAk@localhost"? 

Email addresses are case-insensitive, but logins are case-sensitive.

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