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Deliverability that creates pipeline, not fire drills
Delivery just means a server accepted your email. Deliverability means it actually landed in an inbox and earned a reply. Apollo helps you do both.
94%
email deliverability on a cold list
45%
open rate on a completely cold audience
2.37%
cold-to-meeting conversion vs. a 0.5–1.5% industry benchmark
Independently benchmarked by the Tolly Group.
Set up
Start with infrastructure that mailbox providers trust
Buy dedicated sending domains and mailboxes directly in Apollo, with SPF, DKIM, and DMARC configured automatically. No registrar logins or manual setup required.
Domains and mailboxes purchasable directly in Apollo
SPF, DKIM, and DMARC automatically authenticated
Custom subdomain tracking for better email performance
Email warmup available for any connected mailbox
Protect
Protect your sender reputation as you scale
Automated verification and bounce protection helps keep bad data out of your sends, and built-in safeguards stop deliverability issues before they start.
Catch-all detection to reduce high-risk sends
Bounce & unsubscribe suppression across sequences
Sequence autopause when bounce rates spike
Improve
See what’s working, and what to do next
Track inbox placement, bounce and spam trends, and domain and mailbox health across your whole team, then get guided next steps the moment a risk appears.
Inbox placement and blacklist monitoring to pro-actively catch issues
Bounce logs to drill down on contact- and sequence-level detail
AI Assistant for guided issue fixes on send-blocking and auth errors
How it works
Understand your outreach cycle
Sending too many emails too fast is what burns domains. Spreading the same volume across enough mailboxes and domains, over enough time, is what keeps you in the inbox.
The data accuracy alone improved our email deliverability from 72% to 94%. We grew outbound pipeline by $1.2M in a single quarter and increased meetings booked by 47%.”
Fox Jackson
SVP of Sales at Claiton.io
94%
Deliverability
Apollo shortened our prospecting cycle and lifted our meetings-booked rate by about 30%. We target the right personas faster, with better personalization.”
Sasi Reddy
GTM Systems Manager at Glean
+30%
Meetings booked
Frequently asked questions
Email deliverability is whether your emails actually land in the inbox and earn engagement, not just whether a server accepts them. Delivery only means the message was received somewhere. Deliverability means it reaches a real buyer’s inbox instead of spam or promotions, and gets opened or answered. It’s earned through infrastructure, sender reputation, clean data, relevant content, and healthy sending behavior.
The Email Deliverability Suite is Apollo’s built-in command center for managing email setup and health. It brings domain and mailbox setup, authentication, warm-up, email verification, reputation protection, monitoring, and guided issue resolution into one platform, so GTM teams don’t stitch together separate warm-up, verification, and monitoring tools. You manage deliverability in the same place you prospect, sequence, and analyze outreach.
Apollo works across every layer that affects inbox placement. It authenticates domains and mailboxes with SPF, DKIM, and DMARC, warms them up gradually, verifies contacts and blocks high-risk addresses before you send, and monitors bounce, spam, and reputation signals in real time. When a risk appears, it surfaces the cause and guided next steps so you can fix it fast.
No. Apollo plans include automated warm-up, email verification, bounce protection, and deliverability monitoring, so you don’t need separate subscriptions for each. Everything runs as one system alongside your prospecting and sequencing, which is simpler to manage and helps give you team-wide visibility that disconnected point tools can’t.
Email warm-up typically takes a few weeks, and the exact timeline depends on the domain, mailbox provider, and how aggressively you plan to send. Ramping too fast is one of the quickest ways to hurt a new domain, since providers can detect compressed, bot-like warm-up. You can view the progress of mailbox warmup in Apollo under email setup and health.
A safe starting point is around 20 emails per day per mailbox, then scale gradually as reputation builds. It’s recommended to not exceed more than 50 emails per day per mailbox. Sending far beyond what mailbox providers accept is one of the fastest ways to damage a domain, and no infrastructure can compensate for a single mailbox over-sending. Apollo paces against your guardrails and spreads volume across warmed mailboxes and domains.
Yes, but only when you buy a sending domain through Apollo, we handle the domain authentication (SPF, DKIM, and DMARC) for you, without you lifting a finger. Apollo also enforces authentication before you can send, so a misconfigured domain can’t quietly hurt your reputation. These records prove your emails are legitimate and are required by providers like Google and Microsoft.
An outreach cycle is how long it takes to reach every contact in your sequence at a sending pace mailbox providers trust. Instead of blasting your full list in days, you spread the same volume across enough mailboxes and domains over months. This protects your sender reputation and helps keep you in inboxes instead of spam. Your contact volume and a safe daily send limit determine the infrastructure you need.
Inbox placement is the share of your emails that reach the primary inbox instead of spam, promotions, or nowhere. Delivery alone doesn’t tell you this. Apollo’s Deliverability Suite gives you visibility into placement and engagement trends across your domains and mailboxes, so you can see where messages are landing and catch a drop before it costs you replies.
Yes. Apollo offers blocklist monitoring, checking your sending domains and mailboxes against known email blocklists and surfacing spam-risk signals. If a domain gets flagged, you get an alert plus guided remediation steps, so you can act before a blocklisting drags down your reputation and quietly pushes your outbound into spam.
