321668 - Message Filter rules are case-sensitive on domain portion of email addresses

Status: RESOLVED DUPLICATE of bug 202558

(Thunderbird :: General, defect)

Description

[Chris Noe]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5
Build Identifier: version 1.0.6 (20050716)

Rule fails to match on email address if the case varies in the domain portion of the address. For example, my Sender-ends-with "chase.com" rule mysteriously stopped working one day when they changed their header to "Chase.com". This forces me to create redundant rules to match the same address with varying case combinations.

Per RFC 2821, the domain portion of an email address is case-insensitive, therefore that portion of the comparison should be case-insensitive.

Reproducible: Always

Steps to Reproduce:
1. Create a rule based on Sender using all uppercase characters
2. Receive a message from that address where the header uses lower case

Actual Results:  
The message is not processed by the rule

Expected Results:  
The message should be processed by the rule

While the mailbox (local-part) of an email address IS case-sensitive, it would be nice to allow the entire comparison to be case-insenitive, as an option (perhaps as the default).

[Although a workaround exists for this problem, I am setting the severity to Normal because it is hard for the average user to even discover what is going on.]

Comment 1

[Magnus Melin [:mkmelin]]

This has been fixed in thunderbird 1.5.

*** This bug has been marked as a duplicate of 202558 ***