GMass alternatives: from one Gmail account to a fleet of warmed mailboxes
GMass is mail merge inside Gmail, priced per account from $29.95, with no warm-up since 2023 and Google's daily limits on every account. Teams look for an alternative when they need many mailboxes, warm-up and a sequencer that runs outside the browser. We make Outreach2day and list it first.
- Warm-up and sending included
- $2.50 a mailbox, 12 minimum
- Month-to-month billing
GMass at a glance
- Entry price
- $29.95 a month (Standard, one Gmail account)
- Priced by
- Per Gmail or Workspace account (or per user on team plans); emails and contacts unlimited
- Warm-up
- None: GMass shut its warm-up down on January 31, 2023
- Mailboxes sold
- None sold
- MCP server
- No official MCP server found on gmass.co
- Trustpilot
- 3 / 5 from 39 reviews
GMass and 5 alternatives side by side
Entry price, the full monthly setup at 5,000 cold emails a day, warm-up, LinkedIn and other channels, API and MCP. Each cell links its source.
- Entry price
- $47 a month (Growth, 5,000 emails) source (opens the vendor's page in a new tab)
- 5,000 a day, full setup
- $727.33 source (opens the vendor's page in a new tab)
- Warm-up
- IncludedYes source (opens the vendor's page in a new tab)
- LinkedIn, calls, SMS
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- API
- IncludedYes source (opens the vendor's page in a new tab)
- MCP server
- IncludedYes source (opens the vendor's page in a new tab)
Smartlead
- Entry price
- $39 a month (Base, 6,000 sends) source (opens the vendor's page in a new tab)
- 5,000 a day, full setup
- $717.33 source (opens the vendor's page in a new tab)
- Warm-up
- IncludedYes source (opens the vendor's page in a new tab)
- LinkedIn, calls, SMS
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- API
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- MCP server
- IncludedYes source (opens the vendor's page in a new tab)
PlusVibe
- Entry price
- $37 a month (Personal, 25,000 emails) source (opens the vendor's page in a new tab)
- 5,000 a day, full setup
- $620.33 source (opens the vendor's page in a new tab)
- Warm-up
- IncludedYes source (opens the vendor's page in a new tab)
- LinkedIn, calls, SMS
- Not includedNo source (opens the vendor's page in a new tab)
- API
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- MCP server
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- Entry price
- $41 a month (Starter, 6,000 emails) source (opens the vendor's page in a new tab)
- 5,000 a day, full setup
- $732.33 source (opens the vendor's page in a new tab)
- Warm-up
- IncludedYes source (opens the vendor's page in a new tab)
- LinkedIn, calls, SMS
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- API
- IncludedYes source (opens the vendor's page in a new tab)
- MCP server
- IncludedYes source (opens the vendor's page in a new tab)
GMass
- Entry price
- $29.95 a month (Standard, one Gmail account) source (opens the vendor's page in a new tab)
- 5,000 a day, full setup
- $658.28 source (opens the vendor's page in a new tab)
- Warm-up
- Not includedNo source (opens the vendor's page in a new tab)
- LinkedIn, calls, SMS
- Not includedNo source (opens the vendor's page in a new tab)
- API
- Partly, or at extra costAdd-on or partial source (opens the vendor's page in a new tab)
- MCP server
- Not published source (opens the vendor's page in a new tab)
List prices from Instantly's pricing page, Smartlead's pricing page, PlusVibe's pricing page, Saleshandy's pricing page and GMass's pricing page, checked . Taxes and card fees excluded.
Full monthly cost at three volumes
Each sequencer's plan for the volume with the same mailboxes and domains, next to Outreach2day all-in.
| Setup | 1,000 a day (40 mailboxes) | 5,000 a day (200 mailboxes) | 10,000 a day (400 mailboxes) |
|---|---|---|---|
| GMass + Outreach2day mailboxesKeep the sequencer, buy the mailboxes from us | $179.62
| $658.28
| $1,256.62
|
| Instantly + Outreach2day mailboxesKeep the sequencer, buy the mailboxes from us | $205.67
| $727.33
| $1,357.67
|
| Smartlead + Outreach2day mailboxesKeep the sequencer, buy the mailboxes from us | $202.67
| $717.33
| $1,314.67
|
| PlusVibe + Outreach2day mailboxesKeep the sequencer, buy the mailboxes from us | $145.67
| $620.33
| $1,583.67
|
| Saleshandy + Outreach2day mailboxesKeep the sequencer, buy the mailboxes from us | $207.67
| $732.33
| $1,385.67
|
| Outreach2day all-inMailboxes, warm-up and the sequencer in one bill | $108.67
| $543.33
| $1,086.67
|
GMass + Outreach2day mailboxes
Keep the sequencer, buy the mailboxes from us
- 1,000 a day (40 mailboxes)
$179.62
- GMass Professional + SMTP usage: $70.95 source (opens the vendor's page in a new tab)
- 40 Outreach2day mailboxes at $2.50: $100
- 8 domains at $13 a year: $8.67
- 5,000 a day (200 mailboxes)
$658.28
- GMass Professional + SMTP usage: $114.95 source (opens the vendor's page in a new tab)
- 200 Outreach2day mailboxes at $2.50: $500
- 40 domains at $13 a year: $43.33
- 10,000 a day (400 mailboxes)
$1,256.62
- GMass Professional + SMTP usage: $169.95 source (opens the vendor's page in a new tab)
- 400 Outreach2day mailboxes at $2.50: $1,000
- 80 domains at $13 a year: $86.67
Instantly + Outreach2day mailboxes
Keep the sequencer, buy the mailboxes from us
- 1,000 a day (40 mailboxes)
$205.67
- Instantly Hypergrowth: $97 source (opens the vendor's page in a new tab)
- 40 Outreach2day mailboxes at $2.50: $100
- 8 domains at $13 a year: $8.67
- 5,000 a day (200 mailboxes)
$727.33
- Instantly Hypergrowth + 1 Outbound add-on: $184 source (opens the vendor's page in a new tab)
- 200 Outreach2day mailboxes at $2.50: $500
- 40 domains at $13 a year: $43.33
- 10,000 a day (400 mailboxes)
$1,357.67
- Instantly Hypergrowth + 2 Outbound add-ons: $271 source (opens the vendor's page in a new tab)
- 400 Outreach2day mailboxes at $2.50: $1,000
- 80 domains at $13 a year: $86.67
Smartlead + Outreach2day mailboxes
Keep the sequencer, buy the mailboxes from us
- 1,000 a day (40 mailboxes)
$202.67
- Smartlead Pro: $94 source (opens the vendor's page in a new tab)
- 40 Outreach2day mailboxes at $2.50: $100
- 8 domains at $13 a year: $8.67
- 5,000 a day (200 mailboxes)
$717.33
- Smartlead Unlimited Smart: $174 source (opens the vendor's page in a new tab)
- 200 Outreach2day mailboxes at $2.50: $500
- 40 domains at $13 a year: $43.33
- 10,000 a day (400 mailboxes)
$1,314.67
- Smartlead Smart, 240K step: $228 source (opens the vendor's page in a new tab)
- 400 Outreach2day mailboxes at $2.50: $1,000
- 80 domains at $13 a year: $86.67
PlusVibe + Outreach2day mailboxes
Keep the sequencer, buy the mailboxes from us
- 1,000 a day (40 mailboxes)
$145.67
- PlusVibe Personal: $37 source (opens the vendor's page in a new tab)
- 40 Outreach2day mailboxes at $2.50: $100
- 8 domains at $13 a year: $8.67
- 5,000 a day (200 mailboxes)
$620.33
- PlusVibe Business: $77 source (opens the vendor's page in a new tab)
- 200 Outreach2day mailboxes at $2.50: $500
- 40 domains at $13 a year: $43.33
- 10,000 a day (400 mailboxes)
$1,583.67
- PlusVibe Agency (from): $497 source (opens the vendor's page in a new tab)
- 400 Outreach2day mailboxes at $2.50: $1,000
- 80 domains at $13 a year: $86.67
Saleshandy + Outreach2day mailboxes
Keep the sequencer, buy the mailboxes from us
- 1,000 a day (40 mailboxes)
$207.67
- Saleshandy Pro: $99 source (opens the vendor's page in a new tab)
- 40 Outreach2day mailboxes at $2.50: $100
- 8 domains at $13 a year: $8.67
- 5,000 a day (200 mailboxes)
$732.33
- Saleshandy Scale 200K: $189 source (opens the vendor's page in a new tab)
- 200 Outreach2day mailboxes at $2.50: $500
- 40 domains at $13 a year: $43.33
- 10,000 a day (400 mailboxes)
$1,385.67
- Saleshandy Scale 300K: $299 source (opens the vendor's page in a new tab)
- 400 Outreach2day mailboxes at $2.50: $1,000
- 80 domains at $13 a year: $86.67
Outreach2day all-in
Mailboxes, warm-up and the sequencer in one bill
- 1,000 a day (40 mailboxes)
$108.67
- 40 mailboxes at $2.50, warm-up and sequencer included: $100
- 8 domains at $13 a year: $8.67
- 5,000 a day (200 mailboxes)
$543.33
- 200 mailboxes at $2.50, warm-up and sequencer included: $500
- 40 domains at $13 a year: $43.33
- 10,000 a day (400 mailboxes)
$1,086.67
- 400 mailboxes at $2.50, warm-up and sequencer included: $1,000
- 80 domains at $13 a year: $86.67
25 cold emails per mailbox a day and 5 mailboxes per domain: 1,000 a day = 40 mailboxes, 8 domains, 22,000 emails a month; 5,000 a day = 200 mailboxes, 40 domains, 110,000 emails a month; 10,000 a day = 400 mailboxes, 80 domains, 220,000 emails a month (22 sending days). Monthly list prices on monthly billing; .com domains at $13 a year spread over 12 months.
Why each one is a GMass alternative
1. Outreach2day: mailboxes, warm-up and sequencer together
The step after GMass for most teams: SMTP/IMAP mailboxes on your domains at $2.50 with warm-up, and a sequencer with follow-up steps, a send window, stop on reply and a replies inbox. 40 mailboxes for 1,000 emails a day cost $109 a month with domains. It sends outside Gmail, so Gmail's 2,000-a-day account limit no longer applies.
2. Instantly: a sequencer for many Google accounts
If you want to keep Google Workspace accounts, Instantly connects unlimited of them with warm-up included, from $97 a month for 125,000 emails.
3. Smartlead: unlimited mailboxes with a refund window
Smartlead also connects unlimited Google, Outlook and SMTP mailboxes with warm-up, from $94 for 90,000 sends, and refunds a new subscription within 7 days.
4. PlusVibe: the lowest monthly plan
PlusVibe's Personal plan sends 25,000 emails a month for $37, about the price of one GMass Premium account, with warm-up for every mailbox.
5. Saleshandy: prospect data next to sending
If GMass's list builder from your own inbox is not enough, Saleshandy includes Lead Finder credits for an 852M+ database in each plan.
GMass itself
Each line links to the vendor's page it comes from.
| Feature | GMass |
|---|---|
| Priced by | Per Gmail or Workspace account (or per user on team plans); emails and contacts unlimited source (opens the vendor's page in a new tab) |
| Mailboxes sold | Not includedNone sold source (opens the vendor's page in a new tab) |
| Your own mailboxes | Runs only inside Gmail or Google Workspace in Chrome; other providers only as an outside SMTP server source (opens the vendor's page in a new tab) |
| Sending limits | Google's limits: up to 500 a day for gmail.com, 2,000 for Workspace per account source (opens the vendor's page in a new tab) |
| Warm-up | Not includedNone: GMass shut its warm-up down on January 31, 2023 source (opens the vendor's page in a new tab) |
| LinkedIn, calls, SMS | Not includedEmail only; SMS only as reply alerts source (opens the vendor's page in a new tab) |
| Refunds | No standard window; refunds reviewed case by case source (opens the vendor's page in a new tab) |
| Trial | Included7 days, 50 emails a day, no card; no SMTP during the trial source (opens the vendor's page in a new tab) |
Priced by
- GMass
- Per Gmail or Workspace account (or per user on team plans); emails and contacts unlimited source (opens the vendor's page in a new tab)
Mailboxes sold
- GMass
- Not includedNone sold source (opens the vendor's page in a new tab)
Your own mailboxes
- GMass
- Runs only inside Gmail or Google Workspace in Chrome; other providers only as an outside SMTP server source (opens the vendor's page in a new tab)
Sending limits
- GMass
- Google's limits: up to 500 a day for gmail.com, 2,000 for Workspace per account source (opens the vendor's page in a new tab)
Warm-up
- GMass
- Not includedNone: GMass shut its warm-up down on January 31, 2023 source (opens the vendor's page in a new tab)
LinkedIn, calls, SMS
- GMass
- Not includedEmail only; SMS only as reply alerts source (opens the vendor's page in a new tab)
Refunds
- GMass
- No standard window; refunds reviewed case by case source (opens the vendor's page in a new tab)
Trial
- GMass
- Included7 days, 50 emails a day, no card; no SMTP during the trial source (opens the vendor's page in a new tab)
Choosing
Where GMass stops
GMass follows Google's limits: up to 500 emails a day from a gmail.com account and 2,000 from Workspace. MultiSend on Professional spreads a campaign across more Workspace accounts, but each one still needs a Google seat and its own warm-up, which GMass no longer does.
Outside SMTP is possible at $5 per 10,000 emails, routed through one Gmail account. GMass does not document rotating hundreds of SMTP mailboxes, so the cost rows for GMass are an estimate of that route.
Moving off GMass
New mailboxes need about 14 days of warm-up before cold sending; our warm-up schedule has the ramp. Keep GMass for one-to-one mail merges from your own inbox while the new mailboxes warm up.
The GMass pricing breakdown lists every plan, team price and add-on.
Outreach2day as a GMass alternative
We make Outreach2day and list it first. Where it fits and where it does not.
It fits if
- You run 1,000+ mailboxes: we quote a volume price below every vendor list price in our comparisons, warm-up and sending included
- You send more than one Gmail account can and want warm-up handled
- You want sequences that run without a browser tab open
- You want mailboxes on your own domains with the logins in your hands
It does not fit if
- You need to send from Gmail or Google Workspace accounts
- You want mail merge from Google Sheets inside Gmail
- You want a free trial
GMass alternatives: questions
What is the best GMass alternative?
For volume cold email, Outreach2day: mailboxes, warm-up and sequencer in one bill, $109 a month for 1,000 emails a day. To keep Google accounts with a sequencer, Instantly or Smartlead.
Does GMass have warm-up?
No. GMass shut its warm-up down on January 31, 2023.
How many emails can GMass send a day?
As many as Google allows per account: up to 500 from gmail.com and 2,000 from Workspace. MultiSend adds accounts on Professional and Team plans.
Which alternatives have an MCP server?
Outreach2day, Instantly, Smartlead, Saleshandy and PlusVibe (from Business). We found none for GMass.
Deliverability call
Talk to our deliverability team
Book a call with the people who run our mailbox infrastructure. We look at your current setup and tell you what to change. Running 1,000+ mailboxes? We also quote a volume price below every vendor list price in our comparisons, warm-up and sending included.
- Review your domains, DNS records and current inbox placement
- Size the setup: domains, mailboxes per domain and daily volume per mailbox
- Plan warm-up and the move from your current provider or sequencer
- 1,000+ mailboxes: a volume price per mailbox for your setup
Free call
See open times in your time zone and book on this page.
Or open the booking pageLoading available times…
Open the booking page insteadMore on GMass
- GMass pricing 2026Every plan, add-ons and what they cost
- Google Workspace and Gmail Sending LimitsBlog
- How to Warm Up an Email: Day-by-Day ScheduleBlog
- Reply.io alternatives
- Apollo alternatives
- lemlist alternatives
- Snov.io alternatives
- Smartlead alternatives
Sources
Each vendor's own pages. Vendors change prices and plans; if something here is out of date, write to support@outreach2day.com and we will fix it.
Outreach2day
Instantly
- instantly.ai/llms.txt
- instantly.ai/terms
- instantly.ai/pricing
- help.instantly.ai/en/articles/7917050-add-on-pricing
- instantly.ai/pricing.md
- help.instantly.ai/en/articles/10273259-instantly-plans-overview
- help.instantly.ai/en/articles/6222224-how-to-connect-your-email-accounts-to-instantly
- help.instantly.ai/en/articles/6248612-account-and-campaign-limits
- help.instantly.ai/en/articles/7920548-email-outreach-plans-comparison
- help.instantly.ai/en/articles/10432807-api-v2
- help.instantly.ai/en/articles/12980002-instantly-mcp-model-context-protocol
- help.instantly.ai/en/articles/13941298-instantly-free-trial
- help.instantly.ai/en/articles/9361043-done-for-you-google-email-setup
- outreach2day.com/blog/export-mailboxes-to-instantly-smartlead
- trustpilot.com/review/instantly.ai
Smartlead
- smartlead.ai/llms.txt
- smartlead.ai/new-terms-and-conditions
- smartlead.ai/pricing
- smartlead.ai/pricing.md
- helpcenter.smartlead.ai/en/articles/446-how-to-connect-your-mailbox-to-smartlead
- helpcenter.smartlead.ai/en/articles/147-all-you-need-to-know-about-secondary-sending-domains-for-cold-email-campaigns
- helpcenter.smartlead.ai/en/articles/300-smartlead-mcp-server
- helpcenter.smartlead.ai/en/articles/224-refund-policy
- helpcenter.smartlead.ai/en/articles/151-what-are-the-limitations-in-the-free-trial
- helpcenter.smartlead.ai/en/articles/256-smartsenders-faqs-and-troubleshooting-everything-you-need-to-know
- outreach2day.com/blog/export-mailboxes-to-instantly-smartlead
- trustpilot.com/review/smartlead.ai
PlusVibe
- plusvibe.ai/plans
- plusvibe.ai/terms-and-conditions
- plusvibe.ai/alternatives/lemlist
- help.plusvibe.ai/en/articles/9447971-optimal-email-limit-settings
- plusvibe.ai/email-warmup-new
- help.plusvibe.ai/en/articles/11439331-plusvibe-s-api-documentation
- help.plusvibe.ai/en/articles/12443858-plusvibe-ai-mcp-server
- plusvibe.ai
- outreach2day.com/ai-info
- trustpilot.com/review/plusvibe.ai
Saleshandy
- saleshandy.com/llms.txt
- saleshandy.com/terms
- saleshandy.com/pricing.md
- docs.saleshandy.com/en/articles/16451272-saleshandy-platform-plan-pricing-2026
- saleshandy.com/pricing
- docs.saleshandy.com/en/articles/14756541-azure-email-infrastructure-in-saleshandy
- docs.saleshandy.com/en/articles/6970059-what-is-the-daily-sending-limit
- docs.saleshandy.com/en/articles/9453303-multichannel-frequently-asked-questions-f-a-q-s
- docs.saleshandy.com/en/articles/13367892-saleshandy-mcp-model-context-protocol
- saleshandy.com/email-infrastructure
- outreach2day.com/ai-info
- trustpilot.com/review/saleshandy.com
GMass
- gmass.co/pricing?country=US
- gmass.co/blog/gmass-terms-of-use
- docs.google.com/spreadsheets/d/1UMs6HShKGZk2vowM6uLxN3VglWNQV_k8h0iS4iUi3SQ/edit?usp=sharing
- gmass.co/blog/coldsmtp-cold-email-sending-server
- gmass.co/features/deliverability-optimization
- gmass.co/blog/pricing-faq
- gmass.co/features/smtp-integration
- gmass.co/blog/warmup-shutting-down
- gmass.co/blog/multisend-distributed-campaigns
- gmass.co/features/api
- gmass.co/blog/request-a-refund
- trustpilot.com/review/gmass.co
First cold emails on day 14, full volume on day 21
Add domains, create mailboxes and turn on warm-up. You see every mailbox's warm-up numbers from day one.