Email address case sensitive
A common question!
Yes, email addresses are case sensitive. This means that the capitalization of letters in an email address can affect whether it is recognized as valid or not.
Here are some examples to illustrate this:
[email protected]is a valid email address.[email protected]is also a valid email address.[email protected]is also a valid email address.[email protected]is also a valid email address.
However, if you try to send an email to [email protected] (with a mix of uppercase and lowercase letters), it may not be recognized as a valid email address, and the email may not be delivered.
This is because many email systems, including email providers and mail servers, use a case-insensitive matching algorithm to verify email addresses. This means that they will treat [email protected] and [email protected] as the same email address.
However, it's worth noting that some email systems may be more strict and require exact case matching. In these cases, using a consistent case for your email address (e.g., all lowercase or all uppercase) may be a good idea to avoid any potential issues.
In general, it's a good practice to use a consistent case for your email address and to avoid using special characters or spaces in your email address, as these can also cause issues with email delivery.