How to use Applescript to delete Conversations whose senders contain email addresses from the Messages app -

i want use applescript delete conversations people sent me messages using email addresses. want keep conversations mobile numbers, delete conversations, in correspondent email address.

i've tried:

tell application "messages"     tell every item         delete (every item sender contains ".com")     end tell     save end tell 

all scriptable applications have applescript dictionary can accessed script editor via window --> library menu. reading through application's dictionary can obtain proper terms generating script bidding.

the script below create list of chat ids of chats (conversations) wherein @ least 1 participant using email address. have not tested delete section, since not interested in deleting anything. recommend run time machine or backup service before executing portion of script, in case unexpected results.

set chatstokill {} tell application "messages"     set allchats every chat     repeat eachchat in allchats         set thepeeps participants of eachchat         repeat oneparticipant in thepeeps             if oneparticipant's handle contains "@"                 if chatstokill not contain eachchat's id set end of chatstokill eachchat's id             end if         end repeat     end repeat     repeat deathchat in chatstokill         delete item 1 of (get every chat id = deathchat)     end repeat end tell