Hi, Mehmood,
For the testing purposes I would run this policy not in production envrionment of if it's not possible you can do it out of your working hours.
a) outbound policy
b) I would setup as #1 for the testing purposes
Other message attachment MIME types are as follow
application/vnd.ms-powerpoint - ppt
application/vnd.ms-excel - xls
application/msword - doc
application/vnd.ms-project - mpp
application/x-mspublisher - pub
application/onenote - onetoc
application/vnd.visio - vsd
application/vnd.openxmlformats-officedocument.presentationml.presentation - pptx
application/vnd.openxmlformats-officedocument.wordprocessingml.document - docx
If you need more they are on the link below:
http://www.freeformatter.com/mime-types-list.html
Regarding Credit card you need to apply specifc regex (regular expression) example below:
(^|[^0-9])([1-9][0-9]{3.EN_US} ?[0-9]{4.EN_US} ?[0-9]{4.EN_US} ?[0-9]{4.EN_US})([^0-9]|$)
All of this information are available on the Help of SEMS if you press F1 and type in search the Regular Expressions
Below are copy and paste examples:
Data
Example
Regular Expression
Phone number
(555)555-4567
\(?[2-9][0-9]{2}[\)-.][2-9][0-9]{2}[-.][0-9]{4}
Email address
joe@example.com
[a-zA-Z0-9._%-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}
Credit card number
1234 1234 1234 1234
[1-9][0-9]{3} ?[0-9]{4} ?[0-9]{4} ?[0-9]{4}
Social Security Number
123-45-6789
[0-9]{3}-[0-9]{2}-[0-9]{4}
City, state abbreviation
Palo Alto, CA
.*, [A-Z][A-Z]
2-character state abbreviation
CA
[A-Z][A-Z]
Zip code
12345
[0-9]{5}(-[0-9]{4})?
Dollar amounts, with leading $ symbol
$3.95
\$[0-9]+.[0-9][0-9]
Date, numeric
2003-08-06
[0-9]{4}-[0-9]{2}-[0-9]{2}
Date, alpha-numeric
Jan 3, 2003
(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\.? (3[0-1]|[1-2][0-9]|0?[0-9]), [0-9]{4}
HTTP URL
http://www.example.com
https?://(([012][0-9]{0,2}\.){3}[012][0-9]{0,2}|([a-zA-Z0-9]+\.)+[a-zA-Z0-9]{2,6})(/.*)?
IP address
123.123.123.123
([012][0-9]{0,2}\.){3}[012][0-9]{0,2}
A blank line
^$
HTH