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About

Mailreef is a cold email mailbox infrastructure platform built by cold emailers to make delivery and scaling easy. Its mailboxes are designed to rival Google, Zoho, and Outlook while giving outreach teams a cold-email-friendly environment with dedicated mail servers, dedicated IP addresses, bring-your-own-domain support, and unlimited inboxes. It lets users create domains and mailboxes in one click, with SPF, DKIM, and DMARC automatically configured so teams do not have to manage DNS records manually. Mailreef is built for teams that need to scale cold email campaigns without wasting time creating accounts, setting up fake profiles, or dealing with mailbox blocks from traditional providers. Its infrastructure supports day-one campaign readiness through pre-warmed servers, pre-warmed domains, and pre-warmed mailboxes, helping teams start outreach faster while maintaining stronger deliverability foundations.

About

Sellvance is a GTM experimentation platform for B2B SaaS teams still searching for product-market fit. Validate an ICP, test an offer, or check demand for a feature by talking to real prospects. Most cold email tools are built for volume. But zero replies can mean nobody wants your product, or that your emails never reached the inbox. Sellvance tells them apart. Every experiment gets a Signal Check: a delivery verdict (did the emails arrive?), an interest verdict (is the positive reply rate above your threshold?) and a harm verdict (unsubscribes). Until delivery is confirmed, Sellvance won't let you judge the reply rate. Includes a 9.5M+ company database, enrichment with AI agents, AI-written messages, in-app domains and mailboxes, deliverability monitoring, and an MCP server to run campaigns from Claude. Free Experiment Plan, no domain or mailbox needed. Paid plans from $199/month.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Cold emailers, agencies and outbound teams looking to manage dedicated email infrastructure and improve campaign deliverability at scale

Audience

B2B SaaS companies (1–50 employees), bootstrapped or seed/Series A, still validating their ICP and first acquisition channel. Typical users: founders and early growth leads.

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$240 per month
Free Version Not Supported
Free Trial Not Supported

Pricing

$199/month
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Mailreef
Founded: 2022
United States
www.mailreef.com

Company Information

Sellvance
Founded: 2024
Estonia
sellvance.com

Alternatives

Alternatives

SmartReach

SmartReach

SmartReach.io

Categories

Cold Email Supported

Categories

Go-To-Market Supported
Sales Engagement Supported

Integrations

Gmail Supported
Google Workspace Supported
Instantly Supported
Microsoft Outlook Supported
Smartlead.ai Supported
Zoho Mail Supported

Integrations

Gmail Not Supported
Google Workspace Not Supported
Instantly Not Supported
Microsoft Outlook Not Supported
Smartlead.ai Not Supported
Zoho Mail Not Supported
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