Email subject line capitalization guidelines have evolved in recent years to create a more professional image for your company by demonstrating that you take time on even seemingly minor details like how you write an email subject line.

This is one of the most common mistakes that companies make when doing marketing via email. When writing an email through an online form or with your SMTP server, it’s essential to know exactly what should be written in all caps and what shouldn’t. Although some email programs will capitalize automatically, others don’t, which could mislead your recipients into believing that you are sloppy or rushed. Writing everything lowercase can make your emails look unprofessional and may even seem offensive to the person reading them. In today’s online world, email subject lines have become much more critical than they were in the past. Many email programs that people use for personal use filter out messages that appear to be spam and delete them automatically unless the subject line appears very professional.

If you want to learn How To Improve Email Marketing, feel free to check our other articles!

How Do I Write An Email Subject Line?

It’s effortless! The first word of every sentence should be capitalized just as any punishment would be written when writing a standard essay or story. Proper nouns are also always capitalized. Most commonly, proper nouns include the names of specific companies and organizations such as Walmart or General Electric. It’s essential not to capitalize other words that appear in the subject of an email. Capitalizing certain words can sometimes make the recipient think you are trying to advertise or sell something to them, which will likely cause that message to be deleted.

It’s also essential not to capitalize words such as I, you, or even just a couple of letters. Capitalizing random words can also make your email seem unprofessional or confusing to the reader. This is why it’s crucial to avoid cramming all your information into one line and instead split it up by capitalizing each word into different sequences.

Most email programs will automatically capitalize the first letter of every word, but this may not be appropriate for business emails. Also, be sure not to write your email subject in all caps (capitalizing every letter in the sentence). All hats are used for short messages only or when an angry shouting tone is being used. For example:

SEND BACK MY BOOK NOW!!!

Do I Have To Use Capitalization?

No, you don’t have to capitalize anything in an email as long as you aren’t breaking any other standard capitalization rules. For example, avoid writing everything in lowercase because it could be confusing and unprofessional. However, the exact style used is up to you. If your company has a specific look that all emails should follow, then use that style or encourage others to do so. You can even print out this article and show people why they need to pay attention to their email subject lines!

End sentence with a colon (:)

A simple rule: capitalize the first word after the colon — and nothing else. Many marketing emails are written so that almost every “word” ends with a colon. This is a colossal mistake; if an email subject line ends with a colon, the email is likely to be deleted by spam filters. It’s a big no-no. And don’t put punctuation marks like question marks or exclamation points at the end of an email subject line — just plain words only!

Is It Acceptable To Start a Sentence With a Lowercase Letter?

Whether it’s okay to start sentences with lower case depends mainly on your audience. Some people are taught wrongly that all sentences should begin with uppercase letters, but this is incorrect. If you’re writing an introductory email, then by all means, use lowercase letters; many “serious” business communications also incorporate some level of informality and casualness — mainly when emails from co-workers are being exchanged. However, suppose you’re writing an email to a customer or any other colleague. In that case, it’s essential to show that same level of courtesy and formality in capitalization (capitalizing the first letter of every word).

How Should I Capitalize At The End of Sentences?

What gets left out is also a factor. For example, what if we have some text with uppercase letters on one line, lowercase letters on another line, and numbers like “2009” appear below that — will the email still get sent?

As long as your email is between 25-75 characters long, it won’t be rejected by spam filters. There’s no perfect formula for this; it depends on how many emails you’ve sent before this and how you format your email addresses in the “To:” line.

What Do I Do If My Subject Is Too Long?

If you’re trying to squeeze many words into one line, don’t use all caps (capitalizing every letter). It’s hard on the eyes, and if you want to get your memo across quickly, then capitalized words should be kept short. Also, avoid placing punctuation marks after your title because it could look like something else entirely – especially exclamation points!

Instead of writing an email subject with long words that are run-on sentences, try to split everything up by putting commas or spaces between each word. Yes, there isn’t a simple formula for this. However, it’s essential to make your subject line as easy to read as possible because it’s constantly the only part of an email people will initially see.

Do You Capitalize The First Word In An Email?

If you’re trying to get someone’s attention, then use capital letters for the first word.

For example: “Wanted! Project Manager!” Yes, these are short and sweet sentences because they pack a lot of punch – but that doesn’t mean they’re unprofessional or hard to read. If you write an email subject line with all caps, it makes your message look desperate. Of course, there are exceptions; if you’re writing an email subject line that needs to stand out from the rest (like a work order or confirmation), then it’s okay to use capitalization on the whole thing.

As long as you avoid using too many punctuation marks and abbreviations in your email subject line (which will make things overly complex), a sentence fragment is also okay. You can use pieces in email subject lines because it’s informal and friendly to do so. Just don’t go overboard (like using capital letters for the first two words and periods for the last word).

If you are interested in learning more about How To Write Emails, check our last article!

Should You Capitalize All Letters In An Email?

Since email is a very informal form of communication, capital letters in the subject line typically look out of place. Sure, you might get your pitch noticed, but that doesn’t mean it’s going to be opened. However, there are exceptions to this rule – people who are trying to sell their products or services will capitalize all the letters in their pitches because they want them to stand out from competitors’ emails.

Nevertheless, what we’ve covered here should already help you formulate specific strategies for sending correspondence via email. To learn more about writing professional and appropriate email messages, sign up for an email marketing certification course today.

Summary

To wrap up things, choose a communication style that fits best with your audience . Business email etiquette should be formal, but not overly so. For example, if you’re writing to someone higher up than you in the company, then try adding terms like “please” and “thank you.”

As long as your tone is conversational (not too stiff), it’s okay to use abbreviations in the subject line for words like “company,” “monthly,” etc. Also, avoid using an email subject line with numbers or punctuation marks at the end of sentences or fragments because they could look weird. Don’t go overboard with capitalization (use it sparingly) and never capitalize the first word unless you want to get someone’s attention. When in doubt, ask yourself.

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A data-driven professional with more than 10 years of experience in digital marketing, SEO, PPC, automation, and so on. Privately tea lover, gamer, tech nerd, and traveler. I love writing about marketing!

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