New from Outboundry
Cold email infrastructure on IPs nobody else touches
Mailboundry is our own sending infrastructure, built for outbound rather than borrowed from office email. Every mailbox gets a dedicated IP and DNS that configures itself, so your inbox placement depends on your sending and nothing else. Replies from all of them land in one Outboundry inbox. From $2 per mailbox a month.
Office email was never meant to send cold
Google and Microsoft built their mail platforms for internal teams talking to people who already know them. Cold outreach breaks every assumption behind that design, and you pay for it in inbox placement.
Your reputation is not yours
Pooled IPs mean your placement moves with the behaviour of every other sender in the pool. You can do everything right and still land in spam because someone else did not.
Per-seat pricing punishes scale
Mainstream providers charge per user, because they assume one human per mailbox. Outbound needs dozens of senders, and the licence cost stops making sense long before the strategy does.
Setup is where campaigns die
Domains, records, tracking, SSL, warmup. Every manual step is a chance to get authentication subtly wrong and quietly halve your reply rate for a month before anyone notices.
Mailboundry against Google and Microsoft
Costs shown for 200 sending mailboxes, the sort of estate a team sending at real volume actually runs.
One IP, one sender, one reputation
On Google and Microsoft your mail leaves from pooled IPs shared with thousands of other senders. One bad neighbour and your inbox rate falls with theirs. Mailboundry gives every mailbox a dedicated IP, so the only sending behaviour that affects your reputation is your own.
- A dedicated IP per mailbox or per domain
- No pooled reputation and no bad neighbours
- IPs allocated in the region you sell into
- Reputation you can actually build and keep
- Add another dedicated IP for $50 a month, where others charge $100+
SPF, DKIM, DMARC, MX and tracking, set for you
Authentication is where most cold email setups quietly break. Add a domain to Mailboundry and every record is written and verified for you, following current Gmail and Yahoo sender requirements.
- SPF, DKIM and DMARC written automatically
- MX and custom tracking domain configured
- Records verified before the domain goes live
- Re-checked continuously, not just at setup
Buy domains without leaving Outboundry
Search, buy and connect outreach domains in the same place you run campaigns. No registrar tab, no nameserver copy-paste, no waiting on someone else to press save.
- Search and register domains inside the app, $8 to $14 a year
- Connected and authenticated on purchase
- Bring domains you already own
- Transfer them out whenever you want
- Up to 5 mailboxes per domain, and we advise 3
Change 200 domains as easily as one
Rotating a DMARC policy or updating a tracking domain across a large estate is normally a day of clicking. In Mailboundry it is one edit applied across every domain you select.
- Edit records across any number of domains
- Apply a change to a workspace in one action
- Every update verified after it propagates
- Full change history per domain
Branded links that never expose your main domain
Tracking links and redirect pages served from your outreach domains, secured with SSL and masked so your primary website is never in the header of a cold email.
- SSL issued and renewed automatically
- Custom tracking domain per sending domain
- Masked redirects to your real site
- Primary domain kept out of cold sequences
Built for agencies, not locked to us
Separate every client into its own workspace with its own domains, IPs and billing. And because Mailboundry is infrastructure rather than a walled garden, it works with whatever you send from, while every reply still collects in one Outboundry inbox.
- A workspace per client or per project
- Move domains and mailboxes between workspaces
- Every mailbox lands in the Outboundry Unified Inbox
- Works with any other sending tool over SMTP and IMAP
From $2 per mailbox a month
Price falls as your estate grows and as you commit for longer. No per-seat licence, no setup fee, no minimum.
Resell Mailboundry as your own
Agencies and outbound partners can run Mailboundry under their own brand and domain, with every client in a separate workspace on separate IPs and separate billing. Your clients see your product; we stay invisible.
- Your brand, your domain, your pricing
- A workspace and dedicated IPs per client
- Billing and margin handled on your terms
- Same automated DNS and SSL underneath
Sending in three steps
Add or buy domains
Search and register outreach domains inside Outboundry, or point ones you already own at Mailboundry.
Provision mailboxes
Choose how many mailboxes each domain needs. Dedicated IPs, DNS records and SSL are set up for you.
Warm up and send
Mailboxes connect straight into Outboundry warmup and campaigns, or into any other tool over SMTP and IMAP.
Mailboundry questions, answered
What exactly is Mailboundry?
How is this different from the mailboxes I can already buy from Outboundry?
How many mailboxes can I run on one domain?
Do I have to log into every mailbox separately?
What does an extra dedicated IP cost?
Why do dedicated IPs matter for cold email?
Do I have to touch DNS at all?
Can I use Mailboundry with a tool other than Outboundry?
Is there a free trial?
Can agencies resell Mailboundry?
How quickly can I start sending?
Stop sharing an IP with strangers
Buy domains and mailboxes on infrastructure built for cold outreach, with a dedicated IP each and DNS that sets itself. Ready to send in minutes.
Mailboundry is part of Outboundry. One login for infrastructure, campaigns and replies.
Mailboundry against the alternatives
Honest, priced comparisons against the other cold email infrastructure providers, checked against their public pricing.