We built our inboxes purely for cold email and provide all the deliverability tech needed to land you in the inbox. You just send emails.
You share IPs with senders you'll never meet, then it's on you when their spam burns the pool.
On their ownThe only provider on the hook for whether you actually land.
On the hookThe same question, decided row by row. One column owns whether you land.
Shared infrastructure is the cheapest way to start, and that is its only edge. You are renting space on IPs used by senders you have never met, so when one of them gets flagged, the whole pool pays for it, you included. Reliable cold email takes your own dedicated setup and a team watching it every day. On Mailforge, a stranger's spam becomes your problem. With Aerosend, your reputation is yours alone, and landing you in the inbox is our job.
Domains burn, and if no one catches it fast, your replies dry up before you notice. We watch every domain across 6 metrics, around the clock, and catch a burn before it spreads.
On shared infrastructure you sit on the same IPs as senders you have never met. One of them blasts spam, the pool gets flagged, and your replies drop for something you did not do.
We give you your own dedicated IPs, isolated every 10 domains, so your reputation is yours alone.
Getting to the inbox takes constant work: warming up every domain, keeping it landing, and adjusting as inboxes age. We run all of it for you, continuously. On Mailforge, all of this is your problem. With Aerosend, it's a team whose only job is keeping you in the inbox.
Shared inboxes win on sticker price, no argument. With code AEROSTART we take 40% off and close most of the gap. And because your emails actually land, your cost per reply ends up lower, even if the monthly is a little higher.
A lower sticker that lands in spam costs more per reply, not less.
Built by operators who lived your problem. Namit Jindal ran a lead-gen agency sending up to 1.5M cold emails a month and hated every provider he used: shared IPs, zero monitoring, no burn detection. So he built the infrastructure he wished existed, with co-founder Prabhu Rengaswamy, a 20-year infrastructure architect. One's a Smartlead Hall of Famer in the top 1% of cold emailers. The other engineered the isolation and monitoring stack. Operators, not outsiders.
“Aerosend just works.”
Now books 2-3 meetings a day.
One choice after the full field.
Nothing changed but the inboxes.
“A vendor that's on your side.”
Placement that holds at scale.
Volume of intent, every week.
Region-specific, still landing.
Individual results reported by named customers; methodology and dates on file (as of June 2026).
We will be straight about who each one is for. If one of these reads like you, you already know which way the scale points.
All three are real reasons to use Mailforge. We would rather you keep what works than change for the sake of it.
We built Aerosend to be a more reliable way to land cold email. Test us against anyone you're considering.
Run both side by side, same copy, same list. If your reply rate isn't higher with us, you get your money back.
The five things people ask right before they switch. The short answer to each is on the right. Open any row for the rest.
It is cheaper, and if the lowest sticker price is all you need, it wins. But on shared IPs your reputation is tied to senders you can't see or control. One spammer on the pool and your replies drop for reasons that have nothing to do with you. Your own dedicated, isolated setup is what keeps that from happening.
Yes. Smartlead, Instantly, lemlist, Woodpecker, Reply.io, Saleshandy, and anything that connects over IMAP or SMTP. We sit under your sequencer, we don't replace it.
Yes, from any registrar (about $10 to $12 a year). We handle all the DNS for you: SPF, DKIM, DMARC, configured automatically.
Run us next to your current provider on the same copy and list. If your reply rate isn't higher with us, you get your money back.
Domains provision in 24 to 48 hours, warmup runs about three weeks, then you're at full capacity.