refactor: cleanup code in Email (#9570) #13279

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.1) / Sanity Tests	2m 29s
Others (8.3) / Sanity Tests	2m 21s
Others (8.2) / Sanity Tests	3m 41s
Others (8.4) / Sanity Tests	2m 33s
DatabaseLive (8.2, OCI8, 8.0) / tests	7m 29s
DatabaseLive (8.2, SQLite3, 8.0) / tests	3m 10s
DatabaseLive (8.2, SQLSRV, 8.0) / tests	5m 39s
DatabaseLive (8.3, OCI8, 8.0) / tests	6m 1s
DatabaseLive (8.3, SQLSRV, 8.0) / tests	5m 12s
DatabaseLive (8.3, SQLite3, 8.0) / tests	3m 13s
DatabaseLive (8.4, Postgre, 8.0) / tests	3m 9s
DatabaseLive (8.1, Postgre, 8.0) / tests	2m 42s
DatabaseLive (8.2, MySQLi, 8.0) / tests	4m 31s
DatabaseLive (8.1, MySQLi, 5.7) / tests	3m 42s
DatabaseLive (8.1, OCI8, 8.0) / tests	5m 59s
DatabaseLive (8.2, Postgre, 8.0) / tests	3m 32s
DatabaseLive (8.3, Postgre, 8.0) / tests	2m 36s
DatabaseLive (8.1, SQLSRV, 8.0) / tests	4m 58s
DatabaseLive (8.3, MySQLi, 8.0) / tests	5m 11s
DatabaseLive (8.4, MySQLi, 8.0) / tests	5m 3s
DatabaseLive (8.1, SQLite3, 8.0) / tests	2m 55s
DatabaseLive (8.4, OCI8, 8.0) / tests	6m 55s
DatabaseLive (8.4, SQLite3, 8.0) / tests	2m 52s
DatabaseLive (8.4, SQLSRV, 8.0) / tests	5m 22s
SeparateProcess (8.2) / tests	3m 36s
DatabaseLive (8.1, MySQLi, 8.0) / tests	5m 14s
CacheLive (8.1) / Cache Live Tests	2m 5s
SeparateProcess (8.4) / tests	3m 8s
CacheLive (8.2) / Cache Live Tests	2m 12s
SeparateProcess (8.3) / tests	3m 34s
CacheLive (8.4) / Cache Live Tests	1m 59s
SeparateProcess (8.1) / tests	3m 45s
CacheLive (8.3) / Cache Live Tests	2m 10s
Upload coverage results to Coveralls / coveralls	34s
	2h 9m 34s

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