+exim -d -odq r2@test.ex
+To: localpart_with_056_chars_56789012345678901234567890123456@test.example
+****
+exim -d -odq r3@test.ex
+To: localpart_with_256_chars_5678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456@test.example
+****