How can I prevent my messages from getting caught in the spam filter?

How can I prevent my messages from getting caught in the spam filter?

General tips

  1. Keep your subjects lines short (staying between 10 to 30 characters is considered a best practice).
  2. Avoid special characters such as dollar signs.
  3. Avoid abbreviations and improper grammar.
  4. Avoid words directly related to finance, such as "FREE" or "SALE."
  5. Avoid unusual capitalization
Here is an example of a suspicious email headline:
 


  1. The subject line is 77 characters.
  2. The subject line has special characters, dollar sign and date.
And this is how an improved version might look:

Here is an example of a "spammy" email body:

  1. Excessive punctuation.
  2. "Sir or Madam" opening.
  3. The use of the words "Sale," "Exclusive Deal," and "$900,000."
  4. Irregular punctuation.
And here is what an improved version might look like: