localize strings w lookup function in mass data dump

Hi all,

I need help with localizing some emails. So i have a list of emails in one column and in another a list of a lot of code which may or may not contain those gmails within the code. I was wondering if there is a way to setup a function where if the gmail exists in the code it tell me? Attached a spreadsheet for reference. thanks in advance

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In E21 then copied down.

=IFERROR(INDEX($A$21:$A$142,AGGREGATE(15,6,ROW($A$21:$A$142)/ISNUMBER(FIND($A$21:$A$142,$D21)),1)-ROW($A$20)),"")