^start of string
\w+any word character, repeated at least once
*repeats the group contents below any number of times:
?matches at most one character from the set below:
\.the literal . (4610 / 568 / 2E16)
-the literal - (4510 / 558 / 2D16)
\w+any word character, repeated at least once
@the literal @ (6410 / 1008 / 4016)
?repeats the group contents below at most once:
listthe literal text list (case sensitive) .any character (except for line terminators)
gmailthe literal text gmail (case sensitive) .any character (except for line terminators)
cothe literal text co (case sensitive) m+the literal m (10910 / 1558 / 6D16) (case sensitive), repeated at least once
Group 3((\s*)+,(\s*)+\w+([\.-]?\w+)*@(list.)?gmail.com)* *repeats the group contents below any number of times:
+repeats the group contents below at least once:
\s*any whitespace character, repeated any number of times
,the literal , (4410 / 548 / 2C16)
+repeats the group contents below at least once:
\s*any whitespace character, repeated any number of times
\w+any word character, repeated at least once
*repeats the group contents below any number of times:
?matches at most one character from the set below:
\.the literal . (4610 / 568 / 2E16)
-the literal - (4510 / 558 / 2D16)
\w+any word character, repeated at least once
@the literal @ (6410 / 1008 / 4016)
?repeats the group contents below at most once:
listthe literal text list (case sensitive) .any character (except for line terminators)
gmailthe literal text gmail (case sensitive) .any character (except for line terminators)
comthe literal text com (case sensitive) $end of string, or before its final line terminator