sending array values to email

sending array values to email

I have a SendMail form action that sends mail to the administrator. The message contains values of edited fields. All works well except for values from checklists. In these cases only the first value gets sent through. Here;s the message script:

"The following user has been edited in the IPA users list:
"
+"First Name: " + input.First_Name + "
"
+ "Last Name: " + input.Last_Name + "
"
+ "Email Address: " + input.Email + "
"
+ "Job Title: " + input.Job_Title + "
"
+ "Country: " + input.Country + "
"
+ "Department: " + input.Department + "
"
+ "Organization: " + input.Organization + "

"
+ input.Email1 + "

"
+ "Please add the user to the following email lists:
"
+ "Administrative Groups: " + input.Administrative_Groups + "
"
+ "Country Groups: " + input.Country_Groups + "
"
+ "Job Lists: " + input.Job_lists + "
"
+ "Other Lists: " + input.Other_Groups

Administrative_Groups, Country_Groups, Job_lists and Other_Groups are all arrays. How can I get this email to send all values of each of these fields.

Thanks
rlowry