Bug 63677 - Error mailing to local users if username contains uppercase chars.
Summary: Error mailing to local users if username contains uppercase chars.
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: sendmail   
(Show other bugs)
Version: 7.1
Hardware: i386 Linux
Target Milestone: ---
Assignee: Thomas Woerner
QA Contact: David Lawrence
Depends On:
TreeView+ depends on / blocked
Reported: 2002-04-17 12:11 UTC by Need Real Name
Modified: 2007-04-18 16:42 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2004-01-15 11:09:43 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Need Real Name 2002-04-17 12:11:46 UTC
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 18:17:05 UTC
i have the same Problem

Comment 2 Thomas Woerner 2004-01-15 11:09:43 UTC
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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