Alternatives · Cold Outreach
Maildoso alternatives
As of Nov 12, 2026, the highest-graded Maildoso alternative is Instantly (2.6 GPA).
Maildoso compared with 6 alternatives: Mailforge, Infraforge, Inboxkit, Instantly, Smartlead and 1 more.
Maildoso is a paid product, starting at $75 per month for 30 mailboxes. None of the alternatives has a free plan. 2 more offer a free trial.
Listings checked up to Nov 12, 2026 · Where the facts come from
Black Friday: is there a Maildoso sale?
At a glance
Price against what you get
Maildoso starts at $75 a month and scores 2.0 out of 4 on features, ease of use and platforms. 2 of the 6 alternatives on this chart score higher and start lower: Instantly and Smartlead.
Mailforge, Infraforge, Inboxkit and Zapmail start lower without scoring higher.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
How each one differs from Maildoso
Mailforge
Shared-IP domains and mailboxes built for cold email sending
- Mailforge starts at $3 per mailbox slot / month, billed monthly, with a 10-slot minimum.
- Mailforge also covers inbox warm-up.
Suits: Cold email senders who run many domains and mailboxes
Infraforge
Private cold email infrastructure on dedicated IPs
- Infraforge starts at $4 per mailbox slot / month, billed quarterly, with a 10-slot minimum.
- Infraforge also covers inbox warm-up.
Suits: Senders who want dedicated IPs for cold email
Inboxkit
Google and Microsoft mailboxes for cold email, priced per mailbox
- Inboxkit starts at $2.50 per mailbox / month, billed yearly ($3 billed monthly).
- Inboxkit also covers inbox warm-up.
Suits: Teams that want real Google or Microsoft mailboxes for outreach
Instantly
Cold email from unlimited inboxes, priced by emails and contacts
- Instantly starts at $37.6 per month for 5,000 emails, billed yearly ($47 monthly).
- Instantly also covers workflow automation, AI agents and email campaigns.
- Instantly does not cover dMARC, which Maildoso does.
Suits: Agencies and teams spreading volume across many mailboxes
Smartlead
High-volume cold email with unlimited mailboxes and client workspaces
- Smartlead starts at $32 per month for 6,000 emails, billed yearly ($39 monthly).
- Smartlead also lists iOS and Android apps.
- Smartlead also covers sales pipeline, AI agents and email campaigns.
- Smartlead does not cover dMARC, which Maildoso does.
Suits: Lead generation agencies running outreach for several clients
Zapmail
Google Workspace mailboxes and domains for cold email
- Zapmail starts at $39 per month for 10 Google Workspace mailboxes, billed monthly.
- Zapmail also covers inbox warm-up.
- Zapmail does not cover dMARC, which Maildoso does.
Suits: Agencies and teams running cold email from many Google Workspace mailboxes
Limits worth knowing in Maildoso
- Each mailbox sends at most 15 cold emails and 80 warm-up emails a day, and new mailboxes still need about 14 days of warm-up unless they sit on pre-warmed domains.
- Domains are not included in monthly plans: registration is $15 a year and a pre-warmed domain is $11.90 a month.
- Quarterly plans with domains included are labeled legacy on the pricing page; the monthly blocks are the current plans.
- Subscriptions are canceled through support chat or email, and the page says it has a no-discount policy with no promotions.
Common questions
What are the alternatives to Maildoso?
The alternatives to Maildoso in this directory are Mailforge, Infraforge, Inboxkit, Instantly, Smartlead and Zapmail. Each one has a side-by-side comparison with Maildoso.
Is there a free alternative to Maildoso?
None of the alternatives listed here has a free plan. Instantly and Smartlead offer a free trial.
Which Maildoso alternatives work on Android?
The Maildoso listing does not include an Android app. Smartlead lists one.
Which Maildoso alternatives work on iOS?
The Maildoso listing does not include an iOS app. Smartlead lists one.
When were these prices checked?
Each listing shows its own date. On this page they run from Nov 9, 2026 to Nov 12, 2026. Vendors change prices without notice, so confirm on their site before you buy.