Maildoso vs Winnr

Maildoso compared with Winnr

Winnr is the closest SMTP alternative for a smaller team: $69 a month for fifty mailboxes with extras at $1, domains from $1, warming at $0.60, a pre-warmed marketplace, an MCP server, and a refund on the latest month, all billed monthly. Maildoso keeps the edge at very high volume, where its per-mailbox price falls toward $0.49 at a thousand, and in self-healing account monitoring. Teams running fifty to a few hundred mailboxes should price Winnr; those running a thousand or more should stay with Maildoso.

Winnr compared with Maildoso

The closest match: both run their own SMTP infrastructure with automatic DNS and export to sequencers. Maildoso starts at $75 for thirty mailboxes, about $2.50 each, and falls to about $0.49 at a thousand, with IP rotation and self-healing account monitoring. Winnr starts at $69 for fifty mailboxes with extras at $1, includes warming at $0.60, and adds a pre-warmed marketplace, an MCP server, and a refund on the latest month. Winnr is cheaper for a team running fifty to a few hundred mailboxes; Maildoso's volume curve wins at a thousand and up.

Maildoso

Monthly mailbox packages with steeply falling unit cost by volume, plus separate domain registration at a flat annual rate; legacy quarterly bundles that include domains remain listed.

• Thirty mailboxes$75
• Three hundred mailboxes$225
• One thousand mailboxes$499
• Domain registration$12
• Legacy quarterly bundlesFrom $299

Maildoso wins on unit cost and loses on throughput, so model both. At 10,000 emails a month, fifteen sends a day per mailbox implies roughly twenty-two to twenty-five mailboxes, which fits the $75 thirty-mailbox package plus a few domains: cheaper than provider-account infrastructure but not dramatically so, because you are buying nearly twice the mailbox count. At 100,000 a month you need on the order of 220 to 250 mailboxes, which fits comfortably inside the $225 three-hundred package, against roughly $330 to $675 a month for the same volume from Mailforge, Primeforge, or Zapmail. That is the honest shape of it: broadly comparable at low volume, decisively cheaper at high volume, with the open question being whether SMTP mailboxes place as well as real Workspace accounts for your specific recipient base.

Winnr

Monthly subscription with two plans that include a block of mailboxes and domain slots, plus metered add-ons: $1 per extra mailbox, $0.60 per warming mailbox, $20 per dedicated IP on Enterprise, and $3 per pre-warmed address. Domains are one-time purchases.

• Startup$69
• Enterprise$189

Per mailbox, Winnr is among the cheapest self-serve options in this category. Startup works out at $1.38 a mailbox with fifty included, and each extra is a dollar, so two hundred mailboxes cost $189 on Enterprise with dedicated IP access and onboarding thrown in. Adding warming to fifty mailboxes brings Startup to $99 a month. For 10,000 cold emails a month at the plan guide's ten to twenty sends per mailbox a day, twenty-five to fifty mailboxes are enough, so the $69 plan covers it with room to spare; Google seats for the same count would cost several times as much. Against Maildoso, which charges about $2.50 a mailbox at thirty and falls toward $0.49 at a thousand, Winnr is cheaper at small scale and more expensive at very large scale. The trade is the one every SMTP vendor asks for: reputation lives on the vendor's IP pools, not on Google's or Microsoft's, and the numbers behind that pool (server counts, the 90 percent guarantee, the 25 percent open-rate lift in a customer quote) are the vendor's own.