Maildoso vs Mailreef (2026): which should you pick?
As of Nov 13, 2026, Maildoso and Mailreef share a 1.4 GPA, neither has a free plan, and Maildoso starts cheaper, at $75 a month against $240 a month.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
They get the same grade on all five counts.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick Maildoso if
- Fits if you need 30 or more mailboxes for an outbound team
- Works for senders who already run Instantly or Smartlead
Look elsewhere if
- Skip it if you need just a few mailboxes, since 30 is the smallest block
- Not for you if you want a trial or a discount, because neither exists
- Watch out: domains cost extra, $15 a year or $11.90 a month pre-warmed
- Tight if you want volume per mailbox: 15 cold emails a day each
Pick Mailreef if
- Fits if you send more than 20,000 cold emails a month and want your own server
- Works for agencies that already run Smartlead or Instantly
Look elsewhere if
- Not for you if you send a few hundred emails a month, as the plan starts at $240
- Pricey if you can't commit for 12 months: month to month is $249
- Skip it if you want to try before paying, since both plans go through a demo
- Watch out: $0.001 a send is added to the monthly price
- Too light on its own, because campaigns are sent from a separate tool
How we grade them
| 1.4GPAMaildosoWeak | 1.4GPAMailreefWeak | |
|---|---|---|
| Value for money | D$75 a month for 30 mailboxes is the smallest plan, which is where the category's dearest tenth begins. Domains aren't included. It is cheaper per mailbox as blocks grow. | D$240 a month on a 12-month commitment ($249 month to month), plus $1 per 1,000 emails. The dearest tenth of cold-outreach tools starts at $120, though you do get a whole dedicated server. |
| Free plan and trial | FNo free plan and no trial on record. It also has a no-discount policy. | FNo free plan and no trial; both plans are booked through a demo. |
| Features | DMailboxes and DNS only. It is infrastructure and needs a separate sender, and each mailbox is capped at 15 cold emails a day. | DA dedicated server, mailboxes, monitoring and an API, but no sending tool, leads or sequences. It needs another product to be useful. |
| Ease of use | CNo store rating on record. Mailboxes come set up, but new ones need about 14 days of warm-up and a sender to connect. | CNo store rating on record. You book a demo, then connect mailboxes to a separate sender. |
| Platforms and integrations | BWeb, exporting to Instantly, Smartlead, Saleshandy and EmailBizon. | BWeb, with an API and Smartlead and Instantly connections. |
| Best for | blocks of cold-email mailboxes | a dedicated cold email server for high volume |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Maildoso and Mailreef. How we grade
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. Mailreef starts at $240 a month and scores 2.0.
They score the same, and Maildoso starts $165 a month lower. Of the other cold outreach tools on the chart, 38 score higher than Maildoso for less, and 48 score higher than Mailreef for less.
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
Where they differ
- Mailreef also covers inbox warm-up.
At a glance
| Maildoso | Mailreef | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | $75 per month for 30 mailboxes | $240 per month on a 12-month commitment, plus $0.001 per send |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| Made by | BacklinkSwappers, inc. | Mailreef, LLC |
| Price read from | maildoso.ai | mailreef.com |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
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.
Mailreef
- A per-send fee of $0.001 is added to the monthly price, which is $1 for every 1,000 emails.
- The cheaper Agency price needs a 12-month commitment; month-to-month costs $249.
- Both priced plans are booked through a demo, and no free plan or trial is listed.
- It supplies mailboxes only: campaigns are sent from a separate tool.
Key features
Maildoso
- Mailboxes built for outbound
- Dedicated mailboxes on the vendor's own servers and IPs, with IP rotation and automatic replacement of IPs that stop working.
- Automatic DNS setup
- SPF, DKIM and DMARC records are configured when you register mailboxes under a domain bought or connected through the dashboard.
- Self-healing and health scores
- Burned-out mailboxes are disconnected from campaigns for 14 days, and inbox placement tests run every 3 days with a health score per mailbox.
- Sequencer export
- Mailboxes can be exported to outreach platforms; Instantly, Smartlead and EmailBizon sync with one click, and the vendor says 9 sequencers are supported.
- API and MCP server
- Register domains, create mailboxes and push them to a sequencer from code or from an AI assistant such as Claude.
- Pre-warmed domains
- Domains warmed in advance, each holding up to 50 mailboxes, so new mailboxes can start sending without the usual 14-day wait.
Mailreef
- Dedicated server and IP
- Each plan includes a dedicated mail server and IP address, with 150 or more mailboxes per server and no shared resources.
- One-click domains and mailboxes
- Domains can be bought and mailboxes created in one click, or you can bring your own domain. SPF, DKIM and DMARC records are created automatically.
- Pre-warmed setup
- The comparison table lists a pre-warmed server, domains and mailboxes so campaigns can start on the first day.
- Monitoring and screening
- Server and mailbox monitoring is included, and the vendor says it screens new accounts for spammers.
- API and sender integrations
- Developer API access is included, along with integrations for Smartlead and Instantly.
Plans
Maildoso
30 mailboxes$75
per month for 30 mailboxes ($2.50 each)
Aimed at early-stage teams. Up to 15 cold emails a day per mailbox, plus the features every plan includes.
300 mailboxes$225
per month for 300 mailboxes ($0.75 each)
Aimed at expanding teams. Same features and 15-a-day limit per mailbox as the smaller block.
1,000 mailboxes$499
per month for 1,000 mailboxes ($0.49 each)
Aimed at large-scale campaigns. Same features and per-mailbox limit.
Mailreef
Agency$240
per month on a 12-month commitment, plus $0.001 per send
A dedicated server and IP with 150+ mailboxes per server. Bought through a demo booking.
Agency Flex$249
per month, month-to-month, plus $0.001 per send
The same server setup without a commitment, cancelable at any time. Bought through a demo booking.
EnterpriseCustom
Custom infrastructure with special pricing, available by requesting a quote.
Common questions
Which is cheaper, Maildoso or Mailreef?
As of Nov 13, 2026, Maildoso is cheaper to start with: $75 a month, against $240 a month for Mailreef. Maildoso starts at $75 per month for 30 mailboxes, and Mailreef starts at $240 per month on a 12-month commitment, plus $0.001 per send.
Which has a free plan, Maildoso or Mailreef?
As of Nov 13, 2026, neither Maildoso nor Mailreef has a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.