MyColdInbox

MyColdInbox

Clustox LLC
Marvenn Outbound MyColdInbox

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Marvenn Outbound:

About

Marvenn Outbound is a web-based AI cold-email platform for B2B startups, agencies, and founder-led sales teams. It identifies prospects for selected audiences, researches them, and drafts personalized first emails based on real prospect details. Users review and approve sample emails before campaigns begin; after approval, campaigns run automatically from pre-warmed mailboxes managed by the platform. The service lets teams set daily sending budgets and adjust them as campaigns perform. It grades incoming replies to surface interested prospects, sends booking links to warm replies, and places meetings on the calendar. By handling prospect sourcing, email preparation, mailbox warmup, sending, and reply triage in one workflow, Marvenn Outbound helps lean sales teams manage cold-email outreach without building lists or warming inboxes themselves.
MyColdInbox:

About

MyColdInbox is a web-based shared inbox and email management platform for teams handling cold-outreach replies across multiple sending accounts. It connects Gmail and Google Workspace, Outlook and Microsoft 365, and compatible IMAP/SMTP mailboxes, bringing incoming messages into a unified workspace with each message linked to its source mailbox. Teams can filter and search conversations, label replies, assign threads to teammates, add internal notes, and reply from the original sending account. Role-based workspaces support agencies managing client inboxes, as well as sales development, lead-generation, recruiting, and founder-led outreach teams. MyColdInbox manages replies rather than sending campaigns, allowing teams to keep using their existing campaign tools. It also includes thread status tracking and shared or personal inbox visibility settings.
Marvenn Outbound:

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
MyColdInbox:

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
Marvenn Outbound:

Audience

B2B startups, agencies, and founder-led sales teams doing outbound sales.
MyColdInbox:

Audience

Lead generation agencies, SDR and sales teams, founders and recruiters running cold email from many inboxes
Marvenn Outbound:

Support

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

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Marvenn Outbound:

API

Offers API Supported
MyColdInbox:

API

Offers API Not Supported
Marvenn Outbound:

Screenshots and Videos

No images available
MyColdInbox:

Screenshots and Videos

Marvenn Outbound:

Pricing

$0.05/email
The first 50 emails are free, and a card is required to start. After that, each email sent costs $0.05. Set and adjust a daily budget; there are no monthly plans or tiers. You pay only for emails already sent, in batches of $5 or more.
Free Version Not Supported
Free Trial Supported
MyColdInbox:

Pricing

$15/user/month
Basic is $15 per seat per month; Pro is $29 and Business is $45 per seat per month. Paid plans receive 20% off with yearly billing. The 14-day free trial includes up to two mailboxes and requires no credit card. Basic allows up to 10 mailboxes; Pro and Business have no mailbox limit. Plans do not charge per mailbox.
Free Version Not Supported
Free Trial Supported
Marvenn Outbound:

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
MyColdInbox:

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
Marvenn Outbound:

Training

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

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Marvenn Outbound:

Company Information

Marvenn
Founded: 2025
United States
outbound.marvenn.ai
MyColdInbox:

Company Information

Clustox LLC
Founded: 2012
United States
mycoldinbox.com
Marvenn Outbound:

Alternatives

No Alternatives
MyColdInbox:

Alternatives

MyColdInbox:
GenMail

GenMail

Genspark
MyColdInbox:
MyColdInbox:
Terlido

Terlido

Doteli
Marvenn Outbound:
MyColdInbox:
ColdPilot

ColdPilot

4.0 out of 5 stars
Marvenn Outbound:

Categories

Cold Email Supported
MyColdInbox:

Categories

Email Management Supported
Marvenn Outbound:

Integrations

Amazon SES Not Supported
Brevo Not Supported
Gmail Not Supported
GoDaddy Email Not Supported
Google Workspace Not Supported
Mailgun Not Supported
Microsoft 365 Not Supported
Microsoft Outlook Not Supported
Model Context Protocol (MCP) Supported
SendGrid Not Supported
Yahoo! Mail Not Supported
Zoho Mail Not Supported
MyColdInbox:

Integrations

Amazon SES Supported
Brevo Supported
Gmail Supported
GoDaddy Email Supported
Google Workspace Supported
Mailgun Supported
Microsoft 365 Supported
Microsoft Outlook Supported
Model Context Protocol (MCP) Not Supported
SendGrid Supported
Yahoo! Mail Supported
Zoho Mail Supported
Marvenn Outbound:
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Claim Marvenn Outbound and update features and information
MyColdInbox:
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