Your emails shouldn't die in spam, MailStrike gets you into the inbox.

An AI Agent per mailbox instead of uniform pings, so the engagement looks like real people. LLM-written, multi-turn threads instead of canned templates, so there is no content for filters to flag. And a controlled network: MailStrike decides who is in the MailStrike network, so no spammers, free-mail senders, or dodgy sites can damage your reputation from inside it. Warming mail that lands in spam is also rescued and marked important, a correction opens-only tools cannot make.

Yes, when the engagement is realistic and the network is clean. Providers score senders on engagement history, and warming builds that history by having real mailboxes open, read, and reply to your mail. Where it fails is templated, pooled warmup: Google and Microsoft now run filters trained on that pattern, so it can flag a domain instead of helping it. MailStrike's AI Agents produce the varied, human-like engagement those filters trust. PostNitro went from 67% to 100% inbox placement at Google in 11 days.

Warming through a controlled network produces the same signals as organic engagement, so it is safe for your domain. Google's sender guidelines do not mention warming services. They ask senders to start with low volume to engaged recipients and increase gradually, which is exactly the curve MailStrike automates, within the daily limits you set. Same-domain mailboxes are never paired, provider rate limits are respected, and warming mail only ever goes to mailboxes in the MailStrike network, never to your real prospects. Authentication still has to be in place first, and warming never replaces a clean list.

Flashman is MailStrike's AI assistant. Every day it reads the data for every connected mailbox and writes a short deliverability summary: unusual trends across your inboxes, what to do about them, and outbound recommendations based on inbox health, such as how much to send today, whether open-rate tracking is safe to leave on, and what send delays to use. You do not need to watch every graph for every mailbox. Flashman tells you what matters.

Seed lists are for B2C senders reaching consumer inboxes at Gmail and Outlook. You export a batch of seed addresses as a CSV into whatever tool sends the campaign, mixed into a real send to protect it or sent first to build good signals on the content and domain. The seeds open the email, rescue it from spam, read it for a varied length of time, and a small share mark it important. Seed lists are a standalone product priced by seed volume.

Yes. Sender reputation decays without ongoing engagement signals, and inbox providers re-evaluate senders continuously. After the ramp, MailStrike drops to a maintenance volume of about 15 to 25 warming emails a day per mailbox and keeps going in the background, so the reputation curve stays flat or rising while real campaigns go out. Flashman summarizes every mailbox daily and flags a slide before it costs you placement.

Google Workspace and Microsoft 365 connect with one-click OAuth, so MailStrike never sees your password and access can be revoked from your Google or Microsoft account at any time. Any other provider connects with an app password over IMAP and SMTP. Either way it takes under two minutes per mailbox, and MailStrike runs an SPF, DKIM, DMARC, and MX check the moment the connection lands.

Yes. Authentication is the entry ticket and warming builds reputation on top of it. MailStrike checks all three records, plus MX, automatically when you connect and flags anything missing with the exact record to publish. The free Email Auth Checker runs the same audit for any domain without an account.

No. Inbox visibility is set to Hidden by default: warming mail is labeled and archived the moment it arrives, so your real inbox stays clean and your team never sees a warming thread. You can change that in Settings. Warming is scoped to those threads through an OAuth grant you approve and can revoke.

Yes, and you should. Warming runs alongside live sending at a daily volume you control, so there is no pause in outreach. On a brand-new domain, let the 21-day ramp finish before the first campaign; the dashboard tells you when a mailbox is safe to send from. Then start at 20 to 30 sends a day per mailbox and scale while warming continues in the background.

Yes. Pricing is per mailbox up to 200 on the pricing page, and larger sets are on the Custom plan, with API access. Every mailbox gets its own AI Agent, so a multi-mailbox domain looks like a team of real people rather than one script repeated. Connecting at least three mailboxes, each agent on a different persona, is the recommended setup.

21 days on a standard ramp. The dashboard tells you when the mailbox is safe to send from and how much it can send today. Start at 20 to 30 sends a day per mailbox and scale while warming continues in the background.

Yes, that is one of its main use cases. Agent engagement combined with active spam rescue, where mailboxes in the MailStrike network pull your mail out of the spam folder, mark it important, and engage with it, rebuilds the reputation step by step. Damaged domains take longer than fresh ones, usually three to six weeks depending on the history, but PostNitro went from 67% to 100% inbox placement at Google in 11 days.

Warming is priced per mailbox, and the rate falls as you add more, billed monthly or annually with a lower rate on annual. Each mailbox includes one deliverability test a month. Above 200 mailboxes the Custom plan is quoted. Seed Lists are a standalone product priced by seed volume. Current prices are on the pricing page.

Yes, through a call. MailStrike does not offer a self-serve trial, because letting anyone sign up is what fills a warming network with the senders you do not want your reputation mixed with. Other tools allow it, and their real customers pay for it in results. Book a call and the trial starts with one of your mailboxes connected on the spot. If you only want to see where your mail lands today, the Free Deliverability Test needs a signup but no call and no card.

More than the tool spend. The domains, the inbox seats, the list, the copy and the reps are paid for in full whether the mail arrives or not, and a sequencer reports sent, not filtered, so the share that lands in spam is invisible in the tool that sent it. The quickest way to see your own number is a Free Deliverability Test: it reports inbox, promotions or spam per provider for a real send.

Run the Free Deliverability Test and look at the placement it reports. If a meaningful share of your mail is landing in spam or promotions, book a call and trial MailStrike on your own mailbox before you commit to anything. If it is already landing, the reputation preservation use case explains what keeps it there.