Are email addresses case-sensitive?

Published: 2021-08-11

Have you ever wondered if email addresses are capitalized? This article is all about email address syntax. Learn what to expect when creating an email address using capital letters, special characters, and international symbols.

The reasons for wanting a new email address can be private or professional. Maybe you just want to create an additional account or are about to start the next future-oriented newsletter.

You sit down in front of the keyboard and start playing with different cap combinations. you like what you see The new address reflects your style. It nails your brand.

Suddenly you’re wondering, “Are email addresses case-sensitive?”

First, make sure you’re following email address standards

Every email address must follow established standards. Otherwise the email servers will not recognize the text. The wrong syntax could make you drift through the digital universe.

Luckily, email address standards are simple.

Username Defaults

The information before the @ symbol represents your username (also known as the local part of the email). It’s your unique address. You can up to 64 Latin characters and use the numbers 0 through 9 .

domain standards

Information after the @ symbol represents your email server. It tells the web where to send your email. You can use up to 255 Latin characters and numbers from 0 to 9.

Are emails case sensitive?

E-mail addresses are not case-sensitive. Lowercase letters make the email address easier to read, but the oversight won’t prevent your messages from being delivered.

Is the email address field case sensitive? Again, the quick answer is no , but there are unique exceptions. Consider these two separate email accounts with the same address but different combinations of lowercase and uppercase letters.

any unique [email protected]

[email protected]

In rare cases, an outdated server or program may not interpret the case correctly. Still, it’s safe to say that the vast majority of today’s email servers can handle uppercase letters in an email address.

So, are capital letters important in email addresses?

No. But that doesn’t make them a good idea. A mixture of upper and lower case letters can make your email address difficult to read.

Look again at the examples above. Imagine trying to process the second address over your morning coffee. It’s also not something you’d be happy to decipher at the end of a long day.

Can you use special characters in an email address?

When choosing the best font for email messages, you’re practicing the art of digital typography. Used correctly, it’s a valuable tool for creating compelling emails and powerful newsletters.

Special characters have the same appeal, but you don’t see them in very many email addresses. The problem isn’t just readability. Different services set different standards.

Most email servers recognize the special characters in this list.

! #$%&’*+-=^_{}~

However, Gmail does not allow characters from this group.

& = _ ‘ – + ,

Gmail also doesn’t allow greater than and less than square brackets or more than one period in a row.

A unique email address helps you stand out, but it’s probably best to resist the temptation of special characters.

What about using international symbols in an email address?

International symbols are the character sets that span languages ​​like Russian, Chinese, and Greek. If you do business abroad or correspond regularly with friends in other countries, you are probably familiar with languages ​​that do not use the Latin alphabet.

The vast majority of email communications are based on Latin symbols and ASCII character encoding standards. This forms the basic text language and syntax that enables communication between computers and other devices.

Unicode is a character encoding standard that bridges the gap between international and Latin symbols. Encryption allows sending and receiving emails in languages ​​like German, Hindi and Japanese.

Note that international email services use Unicode, but not all email service providers support international symbols.

Sendinblue fully supports international symbols in email addresses. Customers can use non-ASCII or non-Latin characters in the local part of their contacts’ email addresses and still send them email campaigns.

You can even create a free Sendinblue account, by using an email address with international characters.

How do different email services handle this?

Are all major servers case-sensitive email addresses? For example, are email addresses in Gmail case-sensitive?

No. In general, the major ISPs (Gmail, Yahoo, Outlook, etc.) take a neutral stance on capitalization in your address username.

You can add capital letters before the @ with these services if you really want to (although we don’t recommend it).

As mentioned earlier, it is very uncommon for capital letters in email addresses to cause problems when sending or receiving messages.

What are the best practices for creating an email address?

The goal is not complicated. You want to create an email address that is easily recognized by ISPs and your recipients.

These four tips can help:

  1. Avoid capital letters: this prevents confusion between servers or senders and makes the address easier to read.
  2. Use periods sparingly: You can make an email address more readable, but some email providers restrict their use.
  3. Keep It Simple: Save special characters, clever name spellings, puns, and puns for social media posts.
  4. Don’t change others: Don’t try to change a working email address that doesn’t follow best practices.

Wrap up

Next time someone asks “Are emails case sensitive in Gmail?” you have the answer If friends are considering using special characters in email addresses, you can give them sound advice. You understand the syntax of email addresses.

Create your new username according to the standards of service. Check your email server’s domain name requirements. Take one last look. Make sure you are happy with the results.

Do you plan to use this new address to send marketing emails? If so, then the next thing that needs your attention is your sender name. This differs from your sender address and contains 20 – 30 characters.

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