extract subject from mail

Hi,
I’m trying to extract the subject line from an email in Mail app. I want to use a mail rule so that every time I recieve an email with a specified subject it performs a script. The script that I want to run needs to include the subject line of the email as a variable. I realise this has been covered before using “selected messages” and so on but I’m having trouble getting anything to work. I don’t want to have emails selected I just need the rule to run for every email that has the specified subject".
Many Thanks

Here is my code for the mail rule script:

tell application "Finder" to set sourcefolder to "Released_Ads" as alias
set sourcefolderpath to sourcefolder as string
set folderlist to list folder sourcefolder without invisibles
set mysubject to "test1-may-01-07" as string --> this is the part where I need to get the subject from the current email
set dateline to characters -1 thru -10 of mysubject as string
set magcode to characters 1 thru 4 of mysubject as string
set theissue to magcode & dateline
set alternateissue to characters 1 thru 9 of theissue & "00" & characters 12 thru end of theissue as string
set adnumber to characters 5 thru -11 of mysubject as string
set aditem1 to mysubject & ".eps"
set aditem2 to mysubject & ".pdf"
set aditem3 to adnumber & ".eps"
set aditem4 to adnumber & ".pdf"

repeat with i from 1 to number of items in folderlist
	set this_item to item i of folderlist as string
	tell application "Finder" to set mypath to sourcefolderpath & this_item as alias
	tell application "Finder"
		if this_item contains theissue then
			set mypathstring to mypath as string
			tell application "Finder" to set myfolderalias to mypathstring as alias
			set adlist to list folder myfolderalias without invisibles
			repeat with i from 1 to number of items in adlist
				set this_ad_item to item i of adlist as string
				if this_ad_item = aditem1 then
					tell application "Finder" to set myadalias to mypathstring & aditem1 as alias
					open myadalias
				else if this_ad_item = aditem2 then
					tell application "Finder" to set myadalias to mypathstring & aditem2 as alias
					open myadalias
				else if this_ad_item = aditem3 then
					tell application "Finder" to set myadalias to mypathstring & aditem3 as alias
					open myadalias
				else if this_ad_item = aditem4 then
					tell application "Finder" to set myadalias to mypathstring & aditem4 as alias
					open myadalias
				end if
			end repeat
			
		else if this_item contains alternateissue then
			set mypathstring to mypath as string
			tell application "Finder" to set myfolderalias to mypathstring as alias
			set adlist to list folder myfolderalias without invisibles
			repeat with i from 1 to number of items in adlist
				set this_ad_item to item i of adlist as string
				if this_ad_item = aditem1 then
					tell application "Finder" to set myadalias to mypathstring & aditem1 as alias
					open myadalias
				else if this_ad_item = aditem2 then
					tell application "Finder" to set myadalias to mypathstring & aditem2 as alias
					open myadalias
				else if this_ad_item = aditem3 then
					tell application "Finder" to set myadalias to mypathstring & aditem3 as alias
					open myadalias
				else if this_ad_item = aditem4 then
					tell application "Finder" to set myadalias to mypathstring & aditem4 as alias
					open myadalias
				end if
			end repeat
		end if
	end tell
end repeat

Hi,

a simple rule script to extract the subject is

using terms from application "Mail"
	on perform mail action with messages theMessages for rule theRule
		repeat with eachMessage in theMessages
			tell application "Mail" to set mySubject to subject of eachMessage
			-- do my stuff
		end repeat
	end perform mail action with messages
end using terms from

Hi Stefan,
That works great, Thanks for your help, I just needed a shove in the right direction.
:lol: