The ePostman's mail server allows upper case letters but does not distinguish these from the lower case equivalent. Therefore the variations below are valid but will be sent to the same email address It is not advisable to use uppercase letters in the domain name (domainname.co.uk after the @) as various email relay servers on the internet reject upper case in domain names. The ePostman will convert all email names entered to lower case during registration. You can then choose what to use.

This usually happens when people double-click on the submit button, instead of single clicking it. If you just click the button once, it should work fine. Also, there is a known problem with older browsers sending your bill submission twice, instead of once. You are seeing the result of the second entry (which fails because your first entry was already processed, but you didn't see the result).

A – Yes, the ECF authentication system is case sensitive thereby allowing for mixed case passwords.

No. There is no distinction between the cases. It does not matter whether you write ?McDonalds? or ?mcdonalds?. Usually the case is chosen for best reading results. Note, however, that on Unix systems, file and authentication case distinction is usually a default, so, index.html and Index.html can be two separate files.

Use the CharacterCasing property of the TextBox. textBox1.CharacterCasing = CharacterCasing.Upper; textBox2.CharacterCasing = CharacterCasing.Lower; Contributed from George Shepherd's Windows Forms FAQ

For better visibility, we use all capital letters, unless you specifically mention in the comments of your order that you'd like upper and lower.

To make it easier for the user, Swiss Perfect can perform automatic case conversions in selected fields of the player data dialog box. By configuring Options / Tournament / Data Editor appropriately you can activate such a conversion.

In HTML, element and attribute names in tags are case insensitive, so it doesn't matter. The choice is just a matter of style and personal preference. (You may have noticed that this FAQ is not absolutely consistent in capitalization.) Many people prefer upper case, which makes the tags "stand out" more amongst the text, and makes it easier to find element or attribute names using an editor's search function.

No you can use either case, just ensure you are entering using the correct format. IE/ 8 character code

You must have pressed CTRL+A, tip(1) ''raise character'', specially designed for people with broken Caps Lock keys. Use ~s as above and set the variable ''raisechar'' to something reasonable. In fact, you can set it to the same as the force character, if you never expect to use either of these features. Here is a sample .tiprc file perfect for Emacs users who need to type CTRL+2 and CTRL+A a lot: force=^^ raisechar=^^

This is a very good question. Our only answer is that we want to provide the data in a standardized format and upper case is the easiest way to do it.

You must have pressed CTRL+A, tip's ''raise character,'' specially designed for people with broken caps-lock keys. Use ~s as above and set the variable raisechar to something reasonable. In fact, you can set it to the same as the force character, if you never expect to use either of these features. Here is a sample .tiprc file perfect for Emacs users who need to type CTRL+2 and CTRL+A a lot: force=^^ raisechar=^^

You can't. Tk widget names may not begin with a capital letter as those are reserved for widget class names (this does not apply to any other commands). Specific instances of widgets must begin with a lower case letter. This enables X11 resource definitions to distinguish between a class and an instance.

times it is convenient to have the ability to transform select lowercase areas into UPPER CASE characters for emphasis or make up your reasons and justify them later;-) where might this be a handy ability? Say that you were reading email and notices that routinely you would like to receive in CAPS certain Subject matter for your attention.

Some libraries have routines strupr and strlwr or strupper and strlower, but these are not Standard or portable. It's a straightforward exercise to write upper/lower-case functions in terms of the toupper and tolower macros in <ctype.h>; see also question 13.5. (The only tricky part is that the function will either have to modify the string in-place or deal with the problem of returning a new string; see question 7.5a.

There are 139 lower-case letters in Unicode 2.1 that have no direct uppercase equivalent. Should there be introduced new bogus characters for all of them, so that when you see an "fl" ligature you can uppercase it to "FL" without expanding anything? Of course not. Note that case conversion is inherently language-sensitive, notably in the case of IPA, which needs to be left strictly alone even when embedded in another language which is being case converted.