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Warmup starts the moment you connect a domain and adapts as your campaigns start and pause, from "unknown" to "trusted sender".

New domains have no reputation, so inbox providers don't trust them yet.
Deliveryman builds that trust before your first campaign, then keeps it up.
Warmup activity
Day 9 of 14getnorthwind.com · 15 mailboxes warming up
Starts when you connect a domain. Every mailbox warms up with natural sending patterns, then campaigns unlock.
Your domain is ready for campaigns, and warmup keeps running every day for every mailbox, even while your campaigns send.
Warmup keeps running while your campaigns send, and its sending patterns adapt whenever a campaign starts or pauses.
Before a campaign
Warmup starts small and ramps up gradually.
Campaign running
Warmup keeps going and adjusts around your sends.
Campaign paused
Warmup picks back up and keeps every mailbox active.
15 of 15
mailboxes warming
Every mailbox on every domain you connect. Nothing to switch on.
Everyday
before, during & after campaigns
Warmup never stops, and its patterns adapt when a campaign starts or pauses.
Unlimited
warmup emails, free
Warmup emails never count toward your plan. Only the emails you send do.
Gmail, Outlook, Yahoo and Zoho each judge your domain on their own, so warmup builds your reputation with every provider separately.
The same 14-day path, built separately for each provider
Reputation built for Gmail and Google Workspace on its own.
Built for Microsoft's own filtering rules.
Treated as its own provider, separate from Microsoft 365.
Trust built with Yahoo separately from the rest.
Its own reputation, not borrowed from bigger providers.
Smaller inboxes get their own reputation too.
Deliveryman creates 3 subdomains and 15 mailboxes, with SPF, DKIM & DMARC.
Warmup begins on its own. The domain shows its progress and the time left in the 14-day stage.
Once the stage is done the domain turns Active, and you can use it in your campaigns.
Every mailbox keeps warming up daily, adapting as your campaigns start and pause.

A separate warmup tool means another bill, mailboxes to connect one by one, and a schedule that knows nothing about your campaigns. In Deliveryman, warmup is part of sending.
Unlimited warmup comes with every Deliveryman plan, alongside mailboxes, blacklist monitoring and everything else you need to send.
Automatically, the moment you connect a domain. Warmup and reputation building start on every mailbox without any setup on your side.
The first 14 days are the reputation building stage. Your domains page shows the progress and time remaining, and once it's done the domain is Active and ready for campaigns.
No. Warmup keeps running daily for every mailbox on every domain, even during campaigns. Its sending patterns adapt when campaigns start or pause.
No. Plan usage counts the emails you send in campaigns, follow-ups included. Warmup emails don't count.
No. Warmup is unlimited on every plan and runs for every mailbox of every domain you connect.
No. Warmup is built in, starts on its own and builds your reputation separately with Gmail, Outlook and other providers.