pkg/email/lore: extract patch series #14975

Job	Run time
aux	4m 50s
build	13m 34s
arch (presubmit_arch_linux)	10m 47s
dashboard	3m 31s
arch (presubmit_arch_freebsd)	6m 30s
arch (presubmit_arch_netbsd)	4m 24s
arch (presubmit_arch_openbsd)	4m 21s
gvisor	4m 13s
arch (presubmit_arch_darwin)	4m 24s
old	6m 33s
arch (presubmit_arch_windows)	3m 28s
race	8m 21s
arch (presubmit_arch_executor)	3m 18s
race_dashboard	4m 23s
	1h 22m 37s

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