The IfInBag statement requires a bag name and value, in the format

IfInBag <bag name> <value>

• All IfInBag statements must be followed by an EndIf statement
• You may optionally include an Else statement
• The <value> can either be a simple string, a regular expression (surrounded with '/' characters), or a 'DOS style' wildcarded expression

Basic example

IfInBag mybag "value"
# Statements
EndIf

Using an Else statement

IfInBag mybag "value"
# Statements
Else
# Statements
EndIf

Using a regular expression

IfInBag mybag "/@domain\.com/i"
# Statements
EndIf

Using a wildcarded expression

IfInBag mybag "*@domain.com"
# Statements
EndIf