I'm Kaustubh, the founder of CONCIEIT. I built Preacher because I was frustrated with cold email tools that send the same template to everyone and call it "personalisation."
The insight was simple: if I could read a company's website before emailing them, I'd write a much better email. So I built a tool that does exactly that, automatically, for every contact on my list.
A few things I'm proud of:
The self-serve model. You bring your own Groq/Open AI and smtp2go keys. Groq is free. smtp2go has a free tier. That means Preacher costs you nothing to start, your emails come from your real address, and we never touch your contacts. This felt like the right way to build it.
Upload your contact list, write your template once, and Preacher uses AI to writes personalised paragraphs per email, fetched from the company's real website, shuffles inboxes then sends from your own email address.
Preacher does something different.
For every contact on your list, Preacher:
Fetches their company website
Reads what they actually do
Writes genuinely personalised paragraphs specific to that company
Sends the email from your own email address,.
Conciei's Preacher - AI Powered MailerAI Mailer that writes, researches, and sends for you: 0 SpamMay 2026