Category
Email Deliverability
Key features
Dedicated mail server and IP
One click domain and mailbox setup
Automatic SPF, DKIM and DMARC
01 — Overview
What is
Mailreef
Mailreef provides email infrastructure built for cold outreach, giving each customer a dedicated mail server and IP address instead of shared resources. Teams can buy domains and create mailboxes in one click, with SPF, DKIM and DMARC set up automatically and servers, domains and mailboxes pre-warmed. It plugs into sending tools such as Smartlead and Instantly so outbound teams can scale volume while keeping deliverability stable.
02 — Who it’s for
Ideal Customer Profile
Built for high volume cold emailers, including outbound agencies and solo operators or small sales teams sending tens of thousands of emails a month.
03 — Capabilities
Key Features
Dedicated mail server and IP
One click domain and mailbox setup
Automatic SPF, DKIM and DMARC
Pre-warmed servers and mailboxes
Server and mailbox monitoring
Live deliverability consulting
05 — Similar tools
Alternatives
06 — FAQ
Frequently Asked Questions
What is Mailreef used for?
Mailreef is used to set up and run the mailboxes, domains and server behind cold email campaigns, with a dedicated server and IP so senders control their own reputation.
Who is Mailreef for?
The site has dedicated paths for solo senders and for agencies, and it targets teams sending more than about 20,000 cold emails a month.
Which sending tools does Mailreef integrate with?
Mailreef highlights integrations with Smartlead and Instantly, so mailboxes created in Mailreef can be connected to those platforms for campaigns.
Does Mailreef have an API?
Yes. The site lists developer API access alongside server and mailbox monitoring.





