ActiveCampaign sends the campaigns. Your domain still has to earn the inbox.
ActiveCampaign keeps its shared IPs warm and hands out dedicated IPs pre-warmed, but it says plainly that a new domain has to be warmed too, and it leaves that ramp to you. Keep your campaigns and automations exactly where they are. Add your brand domain here and we build its reputation while ActiveCampaign keeps sending.
Keep sending from ActiveCampaign. Warm the domain here.
Set up your sending domain in ActiveCampaign
ActiveCampaign requires a verified domain before you can send. Adding it under Settings > Advanced covers DKIM, the Mailserver Domain that aligns SPF and the return path, and a basic DMARC record. Without authentication, ActiveCampaign falls back to its own shared authentication, which it warns leads to major deliverability issues.
Know what ActiveCampaign warms, and what it does not
ActiveCampaign’s deliverability team keeps its shared IPs warm, and dedicated IPs arrive pre-warmed. A pre-warmed IP does not warm your domain, though: ActiveCampaign says it is vital to warm the dedicated IP and the domain together, and for a new domain it publishes a manual schedule for you to follow.
Add your brand domain to Inbox Boost
Use the domain in your From address, such as yourbrand.com. The Mailserver Domain you set up for ActiveCampaign stays with ActiveCampaign. We set up what the domain needs and build its sender reputation for you. Nothing to connect to ActiveCampaign: no API key, no app, no change to your account.
Keep every campaign and automation running in ActiveCampaign
Automations, broadcasts, one-to-one sales emails: all of it stays in ActiveCampaign, and campaigns go through its approval review as usual. Mailbox providers score the domain in your From address, so the reputation built here counts for every ActiveCampaign send from yourbrand.com.
Check where ActiveCampaign mail lands
Inbox placement tests show whether your campaigns reach Primary, Promotions or Spam across the major mailbox providers, and blacklist monitoring keeps watching the domain once it is warm.
- Nothing to connect: no ActiveCampaign API key, app or integration
- Nothing to change: automations, lists and templates stay exactly as they are
- Shared or dedicated IP: it works either way, because the reputation belongs to the domain
- Watched after warmup: blacklist and authentication monitoring on your brand domain
The parts of the platform this plan leans on.
A ActiveCampaign domain, warmed without pausing a single send.
Four checkpoints, in order. Click any step or let it play.
ActiveCampaign questions, answered.
Does Inbox Boost connect to my ActiveCampaign account?
My dedicated IP came pre-warmed. Why warm the domain too?
I am on ActiveCampaign’s shared IPs. Does this still help?
Do I need to set up my sending domain in ActiveCampaign first?
Can I see whether it is working?
Checked against ActiveCampaign's own documentation on 12 October 2026. ActiveCampaign is a trademark of its owner; SenderSignal is not affiliated with it.
- ActiveCampaign: Set up your sending domain
- ActiveCampaign: SPF, DKIM, and DMARC authentication
- ActiveCampaign: Dedicated IP addresses with ActiveCampaign
- ActiveCampaign: Using and maintaining a dedicated IP address
- ActiveCampaign: How to warm up a new sending domain
- ActiveCampaign: Why is my campaign pending approval or review?
Other marketing platforms: Klaviyo, Mailchimp, SendGrid, Constant Contact, Brevo, MailerLite. All use cases.
Warm the domain behind your ActiveCampaign campaigns.
Start free, add your brand domain, and keep every automation running in ActiveCampaign while its reputation builds.