Lettre

Lettre is used at run time in 207 crates (of which 34 optionally). It is a direct run-time dependency in 157 crates. It's used only as a dev dependency in 18 crates (of which 13 directly).

Number of dependers	Lettre version	Downloads/month
109	0.11.15	119K
90	0.10.4	13K
2	0.10.0-alpha.4	0
3	0.10.0-alpha.1	0
18	0.9.6	12K
1	0.7.1	70
2	0.6.3	63

Depender (with downloads and own rev deps)			Lettre version
10K	12	lettre_email		^0.9
8.8K	4	loco-rs		^0.11.4
6.8K		rustweb2		^0.11.1
12K	3	email-format	optional	>=0.9.2, <0.10
1.2K		rhombus		^0.11.8
1.2K	1	lightspeed_email		^0.11
1.1K		netsblox-cloud		^0.11.2
950		cratery		^0.11
850	2	mycelium-notifier		^0.10.4
800	1	mycelium-key-value		^0.10.4
800		robonet		^0.10
750		bandurria		^0.11
2.7K		vigil-server	optional	^0.10
700		tiny-web		^0.11
650		formulate		^0.11
600		kagou		^0.11.4
550		stefn		^0.11.11
550		pigeon-rs		^0.11
550		mycelium-smtp		^0.10.4
500		chatterbox		^0.11
2.0K		stblib	optional	^0.11.11
430		argentum_notification_infrastructure		0.11.*
430	3	authifier		^0.10.0-alpha.4
360		ddnet-accounts		^0.11.10
320		torrust-index		^0
310		ddns-rs		^0.11
300		trctl		^0.11.10
290		cwrap		^0.11
230	1	maily		^0.11
220		iceyee_net		^0.11
210		borgreport		^0.11
200		relay-mailer		^0.11.7
190	2	vsmtp-delivery		^0.10.3
190	3	vsmtp-rule-engine		^0.10.3
170	1	csml_interpreter		^0.10.0-rc.4
170		velvet-web		^0.11
1.0K		roadster	optional	^0.11.0
150	1	mime-msg-builder		^0.10
950		portier_broker	optional	^0.11.1
140	1	vsmtp-server		^0.10.3
140		send_email		^0.11.7
120		listsend		^0.11.11
110		ipsync		^0.11
110		huxi-server		^0.11
110	1	anansi-core		^0.10
100		procmac		^0.10.0-alpha.4
100	1	df-email		^0.10.1
100		rustdb-axum-example		^0.10.1
		spring-mail		^0.11
		catapulte		^0.11
	1	himalaya-lib		=0.10.1
		stat_server		^0.11
		airlab-web		^0.11.4
		df-helper		^0.10.1
		mailstrom		^0.9
		rusty-mail		^0.11.10
		cf-dynamic-best		^0.10.4
		rustweb		^0.10.1
		insight		^0.10.1
		raider-server		^0.9
		create-rust-app		^0.10.4
		quickmail		^0.10
		lemmy_email		^0.11.12
		slothunter		^0.11
		origen_metal		=0.10.0-alpha.4
		sso		^0.9
	8	vsmtp-common		^0.10.3
		cv-utils		^0.10.2
		darth-tools		^0.11.2
		micron		^0.11
		async-smtp-lite		^0.10.0-alpha
		cheap_alerts		^0.9
	1	notmuch-more		=0.10.0-alpha.1
		reformulate		^0.10.4
		luftpost		^0.6
		g_lib		^0.10
	1	dipper		^0.11
	4	eternaltwin_mailer		^0.10.3
		zoom-lomax		^0.9
		cnc-rs		^0.11.11
		rss_emailer		^0.9
		cfddns		^0.10.0-rc.4
		totmannschalter		^0.10.0-alpha.1
		got-ya-id		^0.9
		amail-lambda-smtp-relay		=0.10.0-alpha.1
		email-template		^0.10.0-alpha.4
		heimdall		^0.9.6
		kepton		^0.10.0-alpha.4
		mailstat		^0.10.1
		ayb		^0.11.13
	2	dead-man-switch		^0.11.14
		email-notif		^0.10.1
		esm		^0.10.4
		origen		=0.10.0-alpha.4
		snitch		^0.10.0-beta.2
		trailbase		^0.11.7
		service-io		^0.10.0-rc.4
		gitarena		^0.10.0-alpha.2
		mailto		^0.10.0-rc.4
		notify-me		^0.10
	1	turbofuro_runtime		^0.11.7
		habitica_weekly_report		^0.10.0-rc.3
		panorama		^0.9.5
		kraken		^0.7
		nebula_email		^0.9.2
		reporters		^0.10.0-rc.4
		simpleice		^0.6.2
	2	mailboar_backend		^0.11.7
		patme		^0.10.1
		lrn		^0.10.1
		rsmb		^0.9
		zawk		^0.11
		html_to_email		^0.11.11
	3	etwin_mailer		^0.10.1
		smail		^0.11.15
	2	soph-mail		^0.11.10
		torrust-index-backend		^0.10
		bell_system		^0.10
		cascade-email		^0.11.8
		catapulte-engine		^0.11.4
	1	chimes-utils		^0.10
	1	cyaxon-authifier		^0.10.0-alpha.4
		ea_appointment_reminders		^0.11.6
		emsend		^0.10.4
		gargoyle-email-notifier		^0.11.7
		hook0-api		^0.11.7
		lamo		^0.11.1
		mailgun-smtp-rs		^0.11.1
		mailmeld		^0.11.1
		mailmerge		^0.11.10
		minismtp		^0.11.7
		sinan		^0.11.7
		sol-cli		^0.11.6
		sol-command		^0.11.6
		solana-sol		^0.11.6
		uketoru		^0.11.10
		your_package_name		^0.11.10
430	12	lemmy_utils	optional	^0.11.7
420		sentrum	optional	^0.11.6
250		userp	optional	^0.11.9
180		git-next	optional	^0.11
140	1	br-email	optional	^0.11
		minmon	optional	^0.11
		any_mail	optional	^0.11
	3	common_uu	optional	^0.10
	3	common_x	optional	^0.11
		core-dev	optional	^0.10.0
		email-clients	optional	^0.11.6
		hextacy	optional	^0.10.3
		hi-push	optional	^0.10.1
		just_nvim	optional	^0.11.11
		kalgan	optional	^0.10.0-rc.4
		morbo	optional	^0.9
		rnotify	optional	^0.10.1
		spawn-access-control	optional	^0.11
	4	tardis	optional	^0.11
		wechat-error	optional	^0.11.13
7.4K	23	imap	dev	^0.9
1.2K	2	vomit-sync	dev	^0.11
700	7	notmuch	dev	^0.9.2
440		mailhog-rs	dev	^0
230	1	socket-server-mocker	dev	^0.11.9
110		mailcrab	dev	^0.11
100		maik	dev	^0.11.7
	1	vomit-m2sync	dev	^0.11
		tiny-mailcatcher	dev	^0.10.0-rc.3
	1	imap-patch-for-async-imap-lite	dev	^0.9
	1	vomit-m2dir	dev	^0.11
		smtp-dump	dev	^0.9
		azure-ecs-rs	dev	^0.11