Rank
#1	Configure SMTP	99		1		2
#2	Contact Form & SMTP Plugin for WordPress by PirateForms	92				103
#3	SureMail – SMTP and Email Logs Plugin with Amazon SES, Postmark, and Other Providers	89	10	36	1	31
#4	Site Mailer – SMTP Replacement, Email API Deliverability & Email Log	88	34	1		10
#5	Swift SMTP (formerly Welcome Email Editor)	87	38	3	1	7
#6	Solid Mail – SMTP email and logging made by SolidWP	84	24	50		22
#7	Check & Log Email – Easy Email Testing & Mail logging	80	38			125
#8	FluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, MailGun, Postmark, Google and Any SMTP Provider	78	51	31	4	44
#9	ActiveCampaign Postmark for WordPress	76	61	26	2	28
#10	WPO365 \| MICROSOFT 365 GRAPH MAILER	75	35	77		60

Plugins tagged smtp