MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.
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One server, in email. MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.
MailSenpai: lists, campaigns, DNS & spam checks (74 tools, OAuth, EU). SMTP Senpai: SMTP & API.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.