Rewrite subject

The Rewrite subject action lets you change the subject line of an email message.
You can use a Regular expression to find specific text in the subject, and then use the Replace with field to define what it should be replaced with.
For example, you can remove unwanted tags, add prefixes, or modify parts of the subject to match your needs.
Additional resources
- For information about regular expressions you could check regular-expressions.info or regexone.com