A team of SDRs that finds your next clients and writes to each one.

Type your website and MastroSDR works out who buys from you, then finds real businesses that fit and takes the contact address each publishes on its own website. Nothing is guessed: if a business publishes no address, it is shown without one rather than given an invented info@ that will bounce.

You do not have to. MastroSDR reads your website and proposes who you are after, says why for each, and counts how many such businesses actually exist. A suggestion that turns out to contain four businesses is reported as too few to tell you anything, not presented as a plan. You turn on the ones you want.

Probably, if you give it nothing to work with, and MastroSDR will tell you so. Every draft is checked for the phrases people say make them delete without reading, and a batch is checked for being one template with a name swapped. That check argues against our own drafting step, which is the point: a tool that only ever tells you your output is good is selling you something.

Not until you say so. On a new workspace every email waits for you in Emails, under To review, until you press Send. Autopilot exists and is off. Turning it on is a deliberate switch, recorded with who turned it on and when, and you can turn it off at any time. With it on, your SDRs send the clean emails on their own, and anything the draft check flags still waits for you. The only other way past To review is an API key you made yourself with sending ticked, revocable in one click.

That depends on where the email left from, which is worth knowing before you pick a mailbox. Send through a MastroSDR sending domain, or your own server with IMAP on, and the reply comes back here. That person's follow-ups stop before the next one goes, and an address that bounces goes on the do-not-contact list. Send through a Gmail you connect and it does not. Google is asked for permission to send and never to read, so the answer stays in your inbox and you stop those follow-ups yourself.

Yes, on your own booking page. When someone says yes, your SDR drafts the answer with a link to your own booking page. They pick a time, and the meeting lands on your calendar with an invite. Your SDR drafts that answer for a reply that reads as interested, and it waits in Replies until you send it. You set your hours, the meeting length and where you meet in Settings, under Meetings.

A reply that comes back to MastroSDR, because the answer carrying your link is drafted from it. That happens on a MastroSDR sending domain or your own mail server with IMAP. Google is asked for permission to send and never to read, so a yes sent to a Gmail you connect stays in Gmail, and you send your link yourself. No calendar connection is needed. The booking page keeps its own hours, and it can read your busy times from your calendar's private iCal address.

It is the thing this product is built around. Two things burn a domain: sending too much, and sending to addresses that no longer exist. MastroSDR caps both by default rather than leaving it to you to remember. Your daily limit is whichever is lower, the one you set or the one your mail provider enforces, so it cannot be talked into exceeding what Gmail allows. Every address is checked before a send is spent on it. Anyone who unsubscribes goes on a list nobody can take them off, including you. A bounce joins them wherever the mail comes back to MastroSDR: your own server over IMAP, or a MastroSDR sending domain. A bounce to a Gmail you connect stays in Gmail, so that one is yours to catch. And MastroSDR refuses to send at all without a postal address and a working unsubscribe link.

Not to start, though a separate domain is the safer way. For $25 a year MastroSDR buys one for outreach, publishes every record, and gives each SDR an address on it. Your main domain never carries a cold email. You can instead connect the Gmail you already use, or your own mail server. A domain that gets marked as spam stays marked, and you would rather that was never the one your invoices go out from.

Paid plans include a pool of drafts, so there is nothing to connect before you start. Past that, you use your own provider key and they bill you directly at their rates. Or you point MastroSDR at a model running on your own machine, and your prospect data never reaches a vendor at all. There is no per-word tier.

No. Your prospects, drafts and replies are yours. When you use your own key or your own machine, we never see the content at all.

In most places, for business to business, with conditions: a real postal address, a working unsubscribe, and honest headers. MastroSDR refuses to send without the first two and will not let you fake a reply thread. It is built for US recipients: the UK and the EU ask for consent before a commercial email, so any recipient MastroSDR can place there is refused at send time. Canada counts an address a company published on its own site as consent, so those go through and the rest are refused. Rules vary by country and this is not legal advice, so check what applies where your recipients are.