Example Goal: Categorize as TechSupport all messages whose subjects contain help, support, or customer support, regardless of case.
Example Rule:
IF incoming subject matches the regular expression '/help|support|customer support/i'
THEN categorize as: TechSupport
Example Goal: Route to queue1 all messages whose sender's address contains "mycompany.com".
Example Rule:
IF senders address matches the regular expression '/.*mycompany\.com/i'
THEN route to 'queue1'
NOTE: In this example, the dot (.) represents a variable character, and the asterisk (*) indicates that any number of variable characters can precede the portion of the e-mail address to be matched.
Example Goal: Route all messages containing credit card numbers to the Accounting queue. In other words, if the message contains a 16-digit number in 4-digit groups with optional dashes or spaces, assume that the number is a credit card number and route the message appropriately.
Example Rule:
IF incoming body matches the regular expression '/([0-9] {4} ([- ])*){3} [0-9] {4}/x'
THEN route to 'Accounting'
[0-9] {4} means 4 digits between 0 and 9.
([- ])* means any number of optional dashes or spaces.
([0-9] {4} ([- ])*){3} specifies 3 sets of 4 digits with optional dashes or spaces afterward.
Learn about rules and rule groups.
How do I use a regular expression in a rule?