Mailflo provisions your mailboxes, configures SPF/DKIM/DMARC, runs automated warmup, and monitors deliverability — so you hit the primary inbox every time, without touching a DNS record.
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Why most cold email setups fail
Most deliverability issues aren't copy problems — they're infrastructure problems. Here's what kills campaigns before they even start.
Missing or broken SPF, DKIM, or DMARC records send your emails straight to spam — and most teams don't catch it until open rates crater.
Sending cold outreach from a fresh mailbox triggers spam filters within days. Without a structured warmup, your sender reputation never recovers.
Most teams fly blind — they assume emails are landing in primary until reply rates drop to zero. By then, the damage is done.
What works at 200 emails/day falls apart at 2,000. Without inbox rotation and load balancing, sending limits and reputation caps halt your campaigns.
Done-for-you service
Six layers of infrastructure — all managed by Mailflo so your team can focus on pipeline, not plumbing.
We guide domain purchasing, configure all records, and monitor DNS health around the clock so your setup never silently breaks.
Real Google Workspace and Microsoft 365 mailboxes — not shared pools or custom ESPs — provisioned under your account in under 30 minutes.
Full authentication stack configured automatically, validated in real time, and kept in compliance so inbox providers trust every email you send.
AI-driven peer-to-peer warmup builds sender reputation before you send a single cold email. Ramp volume is managed intelligently based on each mailbox's health.
Sending volume is distributed across all your mailboxes automatically — protecting daily limits, balancing load, and keeping deliverability high at scale.
Blacklist checks across 50+ providers, inbox placement tests, weekly performance reports, and instant alerts when anything changes.
From zero to sending
A four-step process designed to get your infrastructure production-ready as fast as humanly possible.
Connect the domains you want to send from. Our setup flow walks you through purchasing guidance and auto-publishes all DNS records.
Select your ESP (Google or Microsoft), choose your mailbox count, and we provision real accounts with profiles and signatures — in minutes.
Every new mailbox enters our AI warmup network immediately. Reputation builds over 14–21 days while you prepare your sequences.
Your infrastructure is live, warmed, and monitored. Connect to your sending tool and launch — we handle everything behind the scenes.
"Before Mailflo, we were constantly battling spam filters and struggling to scale our outreach. Within two weeks of switching, our open rates jumped from 22% to 68% and our pipeline is fuller than ever."
Everything you need to know about our done-for-you cold email infrastructure service.
We'll audit your current sending setup, identify every deliverability gap, and walk you through exactly how Mailflo fixes it — live, no slides, no pitch.
Related service
Struggling with spam placement, blacklisted domains, or poor open rates? See how Mailflo's dedicated deliverability services fix inbox placement end-to-end.
Join 1,000+ teams that trust Mailflo to keep their cold email infrastructure in the primary inbox — every send, every day.
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