The most scalable and stable cold email mailboxes on earth

Mailreef’s mailboxes rivals Google, Zoho, and Outlook. Automatically create domains, mailboxes, SPF, DKIM and DMARC in a few clicks.
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Sending over 100M+ emails per month for companies like
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Compare Mailreef To The Alternatives

Mailreef is built specifically for cold emails. Stop trying to use other email providers to scale
your cold email, Mailreef handles the scaling for you.

Mailreef

Allows cold email
1 click domain purchases
1 click mailbox creation
Automatically creates SPF, DKIM and DMARC
Unlimited free inboxes
Daily send limit
Unlimited
2,000
2,000
2,000
Dedicated IP address
Screening for spammers
Integrates with cold email tools

Understand How Mailreef Works

Mailreef is the best alternative to Google and Microsoft mailboxes for cold email. Learn how we work and why you should layer in our mailboxes in your existing or new campaigns! 

Mailreef's Deliverability rivals Google and Microsoft

If you’re scaling your cold email campaigns it’s inevitable that you’re creating multiple mailboxes. Hundreds of hours are wasted creating, monitoring and deleting mailboxes. Mailreef lets you programmatically create domains and mailboxes in seconds.

Compare to Google Workspace
Compare to Outlook

Companies scale and deliver email better with Mailreef

Across all industries and teams, Mailreef works with teams that send cold email at large scale.

50+ testimonials
RB2B Increases Their Reply Rates By 15% Over Google Mailboxes
When comparing to Google mailboxes Mailreef wins
Anevo Marketing uses Mailreef as a second layer in their infrastructure
Using multiple ESPs is a must in cold email.
How Designity 2x’ed their reply rates with Mailreef
“This is the way to set up cold email infrastructure.”
More case studies

Programatically Create Domains And Mailboxes Via Zapier Or API

As you scale your cold email campaigns, you will want a systematic approach towards creating new mailboxes. Save time and effort via our full API and Zapier integration to programmatically create brand new mailboxes within your own systems.

Learn about our Create Email Address API

Get Started With the best cold email sender on the planet.

With our rigorous customer screening, we ensure unparalleled deliverability, setting the gold standard in the industry for cold emailing.

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