Protect your sender reputation before it slips. Maintenance warming with daily monitoring.
A reputation that lands your mail in the inbox does not stay there on its own. Big sends, complaints, and quiet weeks all erode it, and by the time reply rates drop the damage is done. MailStrike keeps positive engagement flowing to Google and Microsoft at a volume you control, and Flashman warns you the day a mailbox starts to slide.
What erodes a reputation, and what rebuilds it.
- 01Big sends.
A campaign of thousands of emails with few replies reads as bulk mail to Google and Microsoft. Each one costs you a little trust.
- 02Quiet weeks.
Reputation is built on recent engagement. A domain that goes silent gives providers nothing new to trust.
- 03Complaints and bounces.
A bad list or a stale one produces both, and providers weigh them heavily.
- 04Maintenance warming.
Replies in thread, rescues from spam, marks as important, reads for a human length of time, recorded per event, at 15 to 25 emails a day per mailbox.
Nothing in your stack changes. MailStrike is wired to the mailbox alone.
The tools you send with, the lists you send to and the records on your domain all stay exactly as they are. MailStrike attaches to the mailbox itself, which is why holding a reputation steady never costs you a migration.
MailStrikeAI AgentsMailStrikeAI AgentsWe safely scaled sending volume 3 times in under 60 days. Inbox rates stayed above 90% the entire time. MailStrike actually moved the needle for us.
Three times the outbound from the same domains in under 60 days, placement holding throughout. No new domains bought.
Early warning, per mailbox. Flashman tells you what matters.
- Tells you what matters.
Each morning the AI assistant reads every inbox, breaks down anything unusual across them, and says what to do about it.
- Spots trouble early.
A slide on one provider for one mailbox is surfaced before it costs you placement.
- A specialist, daily.
The read a deliverability expert would give you, every morning, for every inbox, with send volume, tracking, and delay recommendations tied to inbox health.
For the domain you cannot afford to lose.
You send every day and the domain is the business. Maintenance warming keeps the engagement record deep enough that one bad list or one big send does not tip placement, and the alert lands before your reply rate does.
Every new domain gets its own 21 days and its own AI Agents, then joins the same maintenance rhythm. The dashboard shows all of them side by side, and Flashman reads all of them each morning.
Placement is fine today and nothing is holding it there. Maintenance warming starts at your current volume, keeps the record deep, and the dashboard tells you the day it is safe to scale.
PostNitroCase studyHalf their mail to Google was in spam. They had no idea.
One Free Deliverability Test found it. Eleven days of warming took PostNitro from 67% to 100% inbox placement at Google, and it has held since. Read the case study →
Half the Google audience they were paying to reach never saw them. Found by a free test, fixed in 11 days.
Questions that come up most.
What this page raises, answered plainly.
Can't find it here? Ask the team.
Yes. Placement is built on recent engagement, and every big send, complaint, and quiet week wears it down. Without fresh engagement the record thins and placement slides. The only question is how quickly.
Yes. Warming runs alongside live sending at a volume you control. The agent's replies and rescues keep the engagement record deep while your campaigns draw on it.
About 15 to 25 emails a day per mailbox after the ramp, inside your hours and never above the daily volume you set.
No. Warming threads only ever go to network mailboxes, never to your prospects, and they are labeled and archived on arrival so your inbox and your sequencer never see them.
The dashboard shows an Inbox Reputation Score per mailbox refreshed daily, a 90-day placement chart with a 14-day trend, and placement per provider. Flashman reads it all each morning and flags anything unusual with what to do about it.
Only if you send to consumer inboxes. Seed Lists protect a specific B2C send while it happens. Maintenance warming keeps the sender healthy between sends.