Cold Email Spintax - Everything You Need To Know (2025)

Spintax is a popular feature in most cold email sending platforms.

Before AI became popular, it was difficult to implement.

Now, with the help of AI, you can add spintax to your emails by clicking a button (if you use the right tool).

In this article, I explain everything you need to know about spintax:

- What is spintax?
- Does spintax work?
- How to use spintax
- Final thoughts

What is spintax?

Spintax is a way of rotating alternative words and phrases into an email.

For example, if you start your email with “Hi”, then you can use spintax to update “Hi” with similar alternatives, such as “Hey” and “Hello”.

When you add spintax to your email, it looks like the following:

{|Hi|Hey|Hello} {first_name},

The above spintax would rotate “Hi”, “Hey” and “Hello” into your cold emails, meaning that each email would be slightly different.

The reason why people use spintax is because if you send the exact same email too many times, then your emails could go to spam. It doesn’t look natural when an email account sends the exact same email thousands of times.

You can learn more about this in my article Does Sending The Same Cold Email Multiple Times Affect Deliverability?

Does spintax work?

There is debate in the cold email community about the effectiveness of spintax.

Some people think it does a lot to improve your deliverability, others think it is not needed.

In my opinion, spintax is not needed when sending low volume, for example, a few hundred emails.

However, if you are sending higher volume, then it’s probably a good idea to use spintax, since there is little downside and mostly potential upside (better deliverability).

How to use spintax

Most cold email platforms have a spintax feature.

Emailchaser has an “AI spintax” feature which allows you to click a button to automatically add spintax to your subject, body and signature.

Before:

After:

Some tools are more user friendly than others.

The benefit of using Emailchaser is that it’s easy to implement (click a button) and you also have more control (subject, body and signature).

Not all cold email platforms allow you to control the spintax in each part of the email (subject, body and signature).

On a related note, you cannot add spintax to your emails if you are manually sending emails through Gmail or Outlook; you must connect your Gmail or Outlook email accounts to a cold email platform (like Emailchaser) and then add spintax to your email copy when creating a campaign.

Final thoughts

In my opinion, you don’t need to use spintax if you are a low volume sender.

However, if you plan on sending thousands of emails, then it’s probably a good idea to add spintax.

Emailchaser allows you to easily add spintax by clicking a button.

If you want to learn more about cold email deliverability, then check out my article Does Email Warm Up Work & Is It Necessary?