[OT] Idiotic question re: email usernames/validation

dalecosp

Gee, it's been a long time since I asked a question 'round here. This one's not too important, so I'll throw it out here:

I've got a "bug system" for one site, and one thing on it is "purchase page returns invalid input where email address begins with capital letter".

I've looked around, and didn't find anything in the RFC's about this. (Granted, probably not enough looking...)

On my 'BSD boxen, I can create a user like "aRfO", but if I try to send him mail, it bounces.

I guess I can just use eregi() instead of ereg() when validating, but I've got so many pages with that type of function...

Can an email address even legally contain/start with uppercase letters? Sure doesn't seems standard practice ...

Elizabeth

I didn't think it mattered, actually... but apparently it does if you're getting the emails bounced back to you.

You could always just do a [man]strtolower[/man] on the email addy's- that's what I'd do.

LordShryku

Well, it can...
Where's it bouncing? Is it being returned from the receipients MTA's or is it your box choking on the address? AFAIK, email addresses aren't case specific though. So, you should be able to just strtolower them and be good to go.

[edit]Yeah, what she said 😃[/edit]

dalecosp

originally posted by Elizabeth
I didn't think it mattered, actually... but apparently it does if you're getting the emails bounced back to you.

You could always just do a strtolower on the email addy's- that's what I'd do.

That was what I thought, too. But the ?? in my mind: what if somebody is "Bob@foo.host" and not "bob@foo.host", and therefore my client can't contact them, 'cause I told 'em (via strtolower) that he was "bob" ...

Originally posted by LordShryku
Well, it can...
Where's it bouncing? Is it being returned from the receipients MTA's or is it your box choking on the address? AFAIK, email addresses aren't case specific though. So, you should be able to just strtolower them and be good to go.

[edit]Yeah, what she said 😃[/edit]

😃

It's all a tad weird to me ATM. (I've been trying real hard to finish a big proj by 8/1, and not sleepling like I should).

BSD/Sendmail. I created a user, "aRfO":

<kadmin@archangel> [/home] [17:08]                                                            

% id arfo
id: arfo: no such user
<kadmin@archangel> [/home] [17:08]                                                            

% id aRfO
uid=1011(aRfO) gid=1016(aRfO) groups=1016(aRfO)

About what you'd expect, 'Nix being concerned about shift keys and such. Apparently Sendmail (MTA) can't handle it though...I can send mail to "aRfO" or "arfo", either one, and get "550 no such user" in either case, though it's plain to see the system knows who it is, and aRfO has mail drops in /var/mail....

I guess I'm just afraid that somewhere, some M$ (or other) braindead MTA will allow such behavior, and ....

ah, enough already. After 5 here. A glass and some ice, please?

Have a nice weekend!