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About

Maildoso provides outbound mailboxes built for cold email, combining SMTP and Google Workspace infrastructure, fast setup, strong deliverability, and automated technical configuration. It helps teams diversify their sending strategy with reputable mailboxes built specifically for cold outreach, so campaigns are not dependent on one sender type, domain, or provider. Users can register domains directly in the dashboard or connect their own, enter mailbox names, and have SPF, DKIM, and DMARC auto-configured so mailboxes are ready to export and use with outreach platforms in minutes. Maildoso supports SMTP mailboxes, Google Workspace mailboxes, and combined setups, giving teams flexibility based on their sending strategy and target audience. It connects with popular sequencers and outreach tools such as Instantly, Smartlead, Saleshandy, and others, making it easier to move newly created mailboxes into active campaigns.

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

B2B sales teams and agencies that need to build, automate, and scale cold email infrastructure with deliverability-optimized domains and mailboxes

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 Not Supported
Online Supported

Support

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

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$90 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 Supported
Live Online Not Supported
In Person Not Supported

Training

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

Company Information

Maildoso
United States
maildoso.ai/

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

Apollo Supported
Close Supported
Front Supported
Gmail Supported
Google Workspace Supported
Instantly Supported
Microsoft Outlook Supported
Nureply Supported
Saleshandy Supported
Smartlead.ai Supported
Woodpecker Supported
lemlist Supported

Integrations

Apollo Not Supported
Close Not Supported
Front Not Supported
Gmail Not Supported
Google Workspace Not Supported
Instantly Not Supported
Microsoft Outlook Not Supported
Nureply Not Supported
Saleshandy Not Supported
Smartlead.ai Not Supported
Woodpecker Not Supported
lemlist Not Supported
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