Tickets :: [#11981] Case-sensitive email addresses

6.0.0-beta1

7/5/25

Summary	Case-sensitive email addresses
Queue	IMP
Queue Version	6.0.3
Type	Bug
State	Not A Bug
Priority	1. Low
Owners
Requester	azurit (at) pobox (dot) sk
Created	01/18/2013 (4551 days ago)
Due
Updated	01/18/2013 (4551 days ago)
Assigned
Resolved	01/18/2013 (4551 days ago)
Github Issue Link
Github Pull Request
Milestone
Patch	No

01/18/2013 06:06:21 PM	Michael Slusarz	Comment #4	Reply to this comment
However, exploiting the case sensitivity of mailbox local-parts impedes interoperability and is discouraged. So it's discouraged. But not forbidden. This statement doesn't change anyth Anyway, if my address is test@example.com and i get e-mail to Test@example.com, i think we can assume that also this address is mine. Why don't treat it like that? How can we assume that? The default action MUST be what the standard says - that these e-mail addresses are not necessarily the same. What about to make this configurable? Patches are welcome. But that is an enhancement and this was reported as a bug (which it is not).

01/18/2013 03:39:05 PM	azurit (at) pobox (dot) sk	Comment #3	Reply to this comment
Well, it also says: However, exploiting the case sensitivity of mailbox local-parts impedes interoperability and is discouraged. Anyway, if my address is test@example.com and i get e-mail to Test@example.com, i think we can assume that also this address is mine. Why don't treat it like that? What about to make this configurable?

01/18/2013 03:21:26 PM	Michael Rubinsky	Comment #2 State ⇒ Not A Bug	Reply to this comment
The local part of an email address IS case sensitive. See RFC 2821.

01/18/2013 10:04:56 AM	azurit (at) pobox (dot) sk	Comment #1 Priority ⇒ 1. Low Patch ⇒ No Milestone ⇒ Queue ⇒ IMP Summary ⇒ Case-sensitive email addresses Type ⇒ Bug State ⇒ Unconfirmed	Reply to this comment
Part of the e-mail address before the @ sign is case-sensitive for IMP. When you set your address to, for example, test@example.com and someone sends you e-mail to Test@example.com, IMP is NOT considering this as your address, which results to: 1.) Message is not marked as Personal. 2.) Your address is added into CC when you are answering to such messages.