First Regexp solution
--------------------
outdata for read of line 1 before:
<cfmail to="#to_address#">

outdata for read of line 1 after:
<!--- <cfmail to="#to_address#">

outdata for read of line 2 before:
<!--- <cfmail to="#to_address#">
</cfmail>

outdata for read of line 2 after:
<!--- <!--- <cfmail to="#to_address#">
</cfmail> --->

outdata for read of line 3 before:
<!--- <!--- <cfmail to="#to_address#">
</cfmail> --->
<cfmail to="#to_address_2#">

outdata for read of line 3 after:
<!--- <!--- <!--- <cfmail to="#to_address#">
</cfmail> ---> --->
<!--- <cfmail to="#to_address_2#">

Second Regexp solution
--------------------
outdata for read of line 1 before:
<cfmail to="#to_address#">

outdata for read of line 1 after:
<!--- <cfmail to="#to_address#">

outdata for read of line 2 before:
<!--- <cfmail to="#to_address#">
</cfmail>

outdata for read of line 2 after:
<!--- <cfmail to="#to_address#">
</cfmail> --->

outdata for read of line 3 before:
<!--- <cfmail to="#to_address#">
</cfmail> --->
<cfmail to="#to_address_2#">

outdata for read of line 3 after:
<!--- <cfmail to="#to_address#">
</cfmail> --->
<!--- <cfmail to="#to_address_2#">