We're not just an inbox provider. We're in your corner.
Anyone can sell you a login and a bunch of inboxes. What actually matters is who picks up when something breaks, who gives you real advice instead of a support ticket number, and who treats your outreach like it's their own business too. That's the whole reason InboxedUp exists.
150,000+
Emails sent daily
10,000+
Isolated inboxes managed
50+
Agencies served
An inbox provider vs. a partner in your corner
Here's the honest difference, and why it matters more than the price per inbox.
Just an inbox provider
- Hands you a login and disappears
- Only talks to you when something breaks
- Treats every account the same
- Support ends at the inbox
InboxedUp
- A dedicated Slack channel with responses in minutes, not days
- Proactive advice on deliverability, warmup, and your outreach setup
- Actually learns your business and flags what could go wrong before it does
- Consulting on the stuff around the inbox too: lists, sequencing, sender strategy
Licensed, not borrowed
Every inbox runs on a genuine Microsoft 365 or Google Workspace license, under Microsoft's and Google's own terms. No shared tenants, no workaround that could get pulled overnight.
Isolation by default
Dedicated tenants and domains mean one burned sender doesn't take the rest of your infrastructure down with it. Your reputation stays yours.
Built for how agencies actually work
Full DNS authentication (SPF, DKIM, DMARC), guided warmup, and plug-and-play with Instantly, Smartlead, Apollo, Lemlist, and whatever sequencer you're already running.
See what people are saying!
4.4 out of 5 on TrustpilotWe didn't write these. Real agencies did, on Trustpilot, unprompted.
“They have by far the best customer support I've ever seen. Dedicated Slack channel, responses in minutes, always going above and beyond, not just in their domain expertise but advising across the board.”
Adrian Balakumar
Verified Trustpilot review
“What truly makes them a great partner is the level of service Al and his team provide. They're responsive, easy to do business with, and extremely knowledgeable about cold email and deliverability. The consulting they offer is worth 1000x what they charge.”
Jay Glenn
Verified Trustpilot review
“Customer support is top tier, which is rare for inbox vendors nowadays. Extremely knowledgeable about cold email industry standards, so they're a great partner to have in your corner.”
Mackenzie
Verified Trustpilot review