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Case studyGrowth Cab × Maildoso

Rolling out Maildoso’s Google Workspace feature to 50,000 SaaS founders in 7 days

How Growth Cab launched Maildoso’s Google Workspace Infrastructure feature to SaaS founders running outbound, with a targeted LinkedIn and email campaign.

The launchLaunch flow
Google Workspace InfrastructureFor SaaS founders · LinkedIn and email Client
  1. 01Distribute
  2. 02Target
  3. 03Position
A 7-day launch sprintNo feature lists, no technical jargon
  • 50,000 SaaS founders reached
  • 7 days Launch window
  • 2 Launch channels, LinkedIn and email
Maildoso banner reading Google Workspace Mailboxes, boost your outbound with high-deliverability, reliable mailboxes, next to a Google Workspace card rising from an open envelope
FIG. 01Maildoso’s official visual for Google Workspace mailboxes, the feature this launch took to SaaS founders.

At a glance

Maildoso
Client
Maildoso
Sector
Email Infrastructure
HQ
Granite Bay, California
Scope
Feature launchAudience targetingMessagingDistribution
Headcount
11 to 50 employees
Product launched
Google Workspace Infrastructure
Channels
LinkedIn and email
Launch window
7 days
Growth CabMaildoso
01 /The goal

Launch Google Workspace Infrastructure to the right founders

Maildoso is an email infrastructure platform. It helps B2B companies set up and manage domains and inboxes for cold email. It keeps deliverability high, so outbound campaigns land in the inbox instead of spam.

Maildoso was launching a new Google Workspace Infrastructure feature. It needed to reach its core audience fast.

The goal: put the feature in front of SaaS founders running outbound within 7 days of launch.

Higher deliverability means more replies. Google Workspace inboxes are the unlock.
Core message of the Maildoso launch campaign
02 /The execution

A 7-day launch sprint across LinkedIn and email

Growth Cab designed and ran a concentrated launch campaign to build awareness for Maildoso’s Google Workspace feature. The strategy rested on three pillars.

DistributeStep 01

  1. LinkedIn + email distribution

    The launch went out through LinkedIn content and targeted email outreach. It reached SaaS founders where they already engage with product updates and growth tactics.

    Three Maildoso feature tiles, one per row: a 3D 1=1 icon next to 1 workspace = 1 domain, a stopwatch next to Quick setup and a plug next to Auto connection
    FIG. 02Maildoso’s case for Google Workspace mailboxes: one domain per workspace, quick setup and auto connection to sequencers.
    Maildoso app form titled Create mailboxes with two radio options, Maildoso (180 available) selected and Google (4 available)
    FIG. 03Inside the Maildoso app, Google mailboxes sit right next to Maildoso’s own mailboxes when a team creates new inboxes.
    OutputThe feature in front of SaaS founders on both launch channels.
TargetStep 02

  1. Targeting SaaS founders running outbound

    Every piece of content was designed for one audience: SaaS founders who rely on cold email as a growth channel. They feel the pain of emails landing in spam. They see the value of Google Workspace inboxes right away.

    Logos of the cold email tools Maildoso connects to, three by two: Instantly, Smartlead.ai, Saleshandy, Apollo.io, lemlist and Woodpecker
    FIG. 04Maildoso mailboxes connect to the cold email tools founders use to run outbound, from Instantly to Woodpecker.
    OutputOne audience for every piece of content: SaaS founders running outbound.
PositionStep 03

  1. One outcome, one message

    The feature was positioned around a single outcome: higher deliverability means more replies. It is the result that matters to founders running outbound at scale.

    • No feature lists
    • No technical jargon
    • Just the result: more replies
    Maildoso Deliverability Dashboard bar chart comparing daily deliverability to Google and Microsoft inboxes from January 22 to January 26, 2025, with values between 86% and 100%
    FIG. 05Maildoso tracks daily deliverability to Google and Microsoft inboxes, the outcome the launch message was built on. Product view from January 2025.
    OutputA single launch message, built on deliverability.
03 /The results

50,000 SaaS founders reached in 7 days

The reach came from the two channels where SaaS founders already engage with product updates and growth tactics.

  • 0150,000SaaS founders running outbound reached by the launch
  • 027 dayslaunch window, run as one concentrated sprint
  • 032launch channels: LinkedIn content and targeted email outreach

Key takeaway

Launching a new feature is not just about shipping it. It is about making the right people feel the problem it solves on the day it goes live.

Growth Cab kept the launch narrow: two channels, one audience and one clear outcome. That focus put the feature in front of SaaS founders running outbound inside the launch window.

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