Assumptions:
- value to look for is in cell
C2
- array to search in:
'email domains'!A:Y
- value to retrieve is in column no 26 (
Z
)
=ArrayFormula(if(countif('email domains'!A:Y;C2)=0;"";index('email domains'!A:Z;sum(if('email domains'!A:Y=C2;row('email domains'!A:Y))); sum(if('email domains'!A:Y=C2;26)))))