Land in the inbox, not in spam
Authentication, inbox warmup, volume ramp, and list hygiene — handled for you. Keres keeps your outbound reaching the primary inbox so your emails actually get read and replied to.
Email deliverability is the rate at which your emails reach the recipient’s primary inbox instead of spam or promotions. For cold outbound it is everything: an email in spam can never book a meeting. Keres maximizes deliverability with proper authentication, warmup, safe sending, and clean lists.
Not sure where you stand? Run the free deliverability checker to test your domain’s SPF, DKIM, and DMARC in seconds.
Deliverability, done for you
SPF, DKIM & DMARC
Full authentication setup and monitoring — now required by Gmail and Outlook for senders.
Inbox warmup
Gradually builds domain and mailbox reputation before you send at volume.
Safe volume ramp
Scales sending across healthy, rotated mailboxes so you never trip spam filters.
List hygiene
Verifies and cleans lists to cut bounces and protect sender reputation.
Email deliverability FAQ
What is email deliverability?
Email deliverability is the rate at which your emails reach the recipient’s primary inbox instead of spam or the promotions tab. For cold outbound, deliverability is the difference between booked meetings and emails no one ever sees.
Why do cold emails land in spam?
Usually missing or misconfigured authentication (SPF, DKIM, DMARC), cold domains sent without warmup, sending volume ramped too fast, spammy copy, or poor list hygiene. Keres handles all of these for you.
What is inbox warmup?
Warmup gradually builds a new sending domain and mailbox’s reputation by sending and engaging with email over time, so mailbox providers learn to trust you before you send at volume.
Do I need SPF, DKIM, and DMARC?
Yes. These three records authenticate that your mail is really from you. Gmail and Outlook now require them for bulk senders. Keres configures and monitors all three.
How does Keres improve deliverability?
We set up authentication, warm your inboxes, ramp volume safely, rotate sending across healthy mailboxes, keep lists clean, and monitor placement — so your outbound consistently reaches the primary inbox.
Get your outbound into the inbox
Book a demo and we’ll audit your current deliverability and show you what Keres fixes.
Book a Demo