4 ms·

Says who? Email addresses are case insensitive. If email software treats emails as case sensitive then it is broken. People have to write email addresses on pap

by mantap 6y ago

Says who? Email addresses are case insensitive. If email software treats emails as case sensitive then it is broken. People have to write email addresses on paper forms, in all caps.

ajanuary 6y ago
Says RFC 5321 [1]: "The local-part of a mailbox MUST BE treated as case sensitive." It _does_ recommend receivers treat it as case insensitive for maximum interoperability, so it is de facto insensitive, but something implementing it as case sensitive isn't broken. [1] https://tools.ietf.org/html/rfc5321 https://tools.ietf.org/html/rfc5321
- mantap 6y ago
  It does make it broken. Broken means not working. If your software refuses an email because it's in the wrong case then that software is broken. And quoting out of an RFC is not going to make users stop complaining. Email addresses are written i a variety of situations where preserving case is not possible. For instance on forms, or over the phone. If the IETF wants to ignore that then that's the IETF's problem, don't make it yours too.
  - TuringNYC 6y ago
    I think it is a fair point -- when a technical standard and/or convention so vastly disagrees with common user perception, perhaps the requirement should be broadened to account for both.
  - inopinatus 6y ago
    On the flipside, you’re trying to tell me I should be willing to accept a lower standard than I wish to, or that I’m used to, or that has been established for decades, because of some anachronistic bureaucrat, and my response to that is a short expletive.
- voiper1 6y ago
  huh, TIL email addresses can be case sensitive.
- GoblinSlayer 6y ago
  Wait, how can it recommend to do contrary to MUST?
gpvos 6y ago
You, and the paper forms, are incorrect. In fact, on such forms, you should use the proper case for your email address, otherwise you are entering an incorrect address, which may be fraud.
GoblinSlayer 6y ago
I filled paper forms and wrote email in lower case all the time. What I miss?

by mantap 6y ago

Says who? Email addresses are case insensitive. If email software treats emails as case sensitive then it is broken. People have to write email addresses on paper forms, in all caps.

ajanuary 6y ago

Says RFC 5321 [1]: "The local-part of a mailbox MUST BE treated as case sensitive." It _does_ recommend receivers treat it as case insensitive for maximum interoperability, so it is de facto insensitive, but something implementing it as case sensitive isn't broken. [1] https://tools.ietf.org/html/rfc5321 https://tools.ietf.org/html/rfc5321

mantap 6y ago
It does make it broken. Broken means not working. If your software refuses an email because it's in the wrong case then that software is broken. And quoting out of an RFC is not going to make users stop complaining. Email addresses are written i a variety of situations where preserving case is not possible. For instance on forms, or over the phone. If the IETF wants to ignore that then that's the IETF's problem, don't make it yours too.
- TuringNYC 6y ago
  I think it is a fair point -- when a technical standard and/or convention so vastly disagrees with common user perception, perhaps the requirement should be broadened to account for both.
- inopinatus 6y ago
  On the flipside, you’re trying to tell me I should be willing to accept a lower standard than I wish to, or that I’m used to, or that has been established for decades, because of some anachronistic bureaucrat, and my response to that is a short expletive.
voiper1 6y ago
huh, TIL email addresses can be case sensitive.
GoblinSlayer 6y ago
Wait, how can it recommend to do contrary to MUST?

gpvos 6y ago

You, and the paper forms, are incorrect. In fact, on such forms, you should use the proper case for your email address, otherwise you are entering an incorrect address, which may be fraud.

GoblinSlayer 6y ago

I filled paper forms and wrote email in lower case all the time. What I miss?