One service, from a single brief to millions of inboxes.
Fortitude Send pairs an AI campaign engine with automated deliverability infrastructure, and runs both for you. Two jobs that usually need two teams, handled as one managed service.
AI campaign creation
Bring an idea. Get three on-brand, ready-to-send campaigns in minutes, with copy that converts and original imagery, each variant aimed at a different slice of your list.
Explore AI campaign creation →Deliverability & warm-up
Domains provisioned and warmed, load balanced across three providers, every list verified and every campaign spam-tested. Reputation is protected automatically, before any damage spreads.
Explore deliverability & warm-up →Every layer reinforces the next.
Provision
Sending domains spun up with SPF, DKIM, DMARC and tracking, merged correctly with anything you already have.
Verify
Every list is validated and re-verified continuously, so old or risky addresses never reach a send.
Warm
New and idle domains are warmed using real engagement until they are ready to take production volume.
Create & check
The AI builds three on-brand variants, then runs compliance and content checks before anything goes out.
Spam-test & send
Pre-send inbox tests, then load balanced delivery across a pool of warmed domains and three providers.
Monitor & protect
Live delivery data feeds the load balancer and the Reputation Guardian, which throttles or pauses before damage spreads.
A live window into everything, with nothing to manage.
Watch every campaign, every domain and every provider in real time while we operate the platform for you. Nothing is hidden, nothing for you to babysit.
Built on the best, run as one.
Three providers
Resend, Amazon SES and Mailgun, load balanced campaign by campaign.
Domain automation
SPF, DKIM, DMARC and tracking records provisioned and managed for you, with SPF merging.
Warm-up & spam test
Real-engagement warm-up and pre-send inbox tests before any audience touches your campaign.
Verification
Continuous list validation so suppressed and risky addresses never reach a send.
You approve. We run it. You never worry about the inbox.
Fortitude Send is a team and an engine that operate your email end to end. Nothing for you to babysit, nothing to learn.
Frequently asked questions
Is Fortitude Send self-serve or managed?
Fully managed. We connect your domains, build your campaigns with you, run the sends and watch the signals. You approve and review. We operate.
Which email providers do you use?
We send across Resend, Amazon SES and Mailgun. Every campaign is load balanced across a pool of warmed domains and across providers, so no single provider issue can stop your send.
How are domains set up?
Domains are provisioned automatically with SPF, DKIM, DMARC and tracking records, and SPF is merged correctly when you already have records in place. Once configured, the system warms them up using real engagement before they take production volume.
Can I bring my own domains?
Yes. You can bring existing domains or have us provision fresh ones. Either way we run warm-up, monitor reputation and route sending so each domain is used safely.
See the platform run on your list.
Tell us about your audience and we'll walk you through the whole loop with a real campaign of your own.