email validation field

In Our Org we would like to create a validation for email field in IPAD servicemax application

Issue : Validation rule is not firing as expected JSA .

Root cause : Other field which was used on the Validation rule expression - the same field was not being used on the SFM page layout .

Solution : Since there were more than 8 fields with the same lable 'Other' changed the field label and use the right field on the page layout . with this issue got resovled .

Issue :GE_PC_SerivceReport_Email_Validation - rule

1.In SFM process - mapping - Record Type value is mapped - hence no need to keep the filed in Validation Rule . Because work order will be created for the mapped Value only.

2. Below condition is only required :

Email Service Report To - Does not Contain - Value - .com

Email Service Report To - Does not Contain - Value - @

Advanced Expression : 1 or 2

What is the underlying problem do you intend to solve with this idea?
ease of use and confirmed validation for efficiency
How is the problem being addressed today, if at all?
Product Area?
What version of ServiceMax are you on?
Summer 15