Short answer

Mission Inbox puts every plan on dedicated IPs and meters how many emails you send; Winnr charges a flat plan per mailbox count. For 50 mailboxes sending 15 cold emails a day each, Mission Inbox's Scale plan comes to about $272/mo as of October 2026, against $69 on Winnr ($209 on Winnr Enterprise with a dedicated IP). Choose Mission Inbox if dedicated IPs on every mailbox, pre-send content checks and transactional email from the same vendor matter more than price. Choose Winnr for the lower cost per mailbox and per email.

If you are looking for a Mission Inbox alternative, the key change to know about is pricing: Mission Inbox now combines a base fee, per-mailbox charges and a per-email charge, with dedicated IPs on every plan. Here is how that compares with Winnr at 50, 200 and 1,000 mailboxes.

What Mission Inbox offers as of October 2026

Winnr vs Mission Inbox at a glance

WinnrMission Inbox
Mailbox typeSMTP/IMAP on Winnr's own sending infrastructureMailboxes on Mission Inbox's dedicated servers and IPs
How you payPlan: $69 for 50 accounts or $189 for 200, then $1 per extra account$199 base (30 mailboxes, 10,000 sends), +$3 per mailbox, +$1 per 1,000 extra sends
Per-email chargesNone$1 per 1,000 sends above the allowance
Dedicated IP$20/IP/month on EnterpriseIncluded on every plan
Pre-send checksNot offeredMI Shield
Warm-upBuilt in, $0.60/mailbox/monthPaid add-on
Ready-to-send optionPre-warmed mailboxes, $3/address/monthPre-warmed mailboxes and aged domains
Transactional emailNot a transactional email service (cold email infrastructure only)Developer plan from $99/month
DomainsOne-time purchase, about $13 for a .com. Bring your own freeAged domains available on Scale; domain pricing not listed
BillingMonthly, no annual contractsMonthly

Cost at 50, 200 and 1,000 mailboxes

Mission Inbox's Scale plan as of October 2026, shown two ways: mailboxes only, and with each mailbox sending 15 cold emails a day for 30 days, Winnr's default recommendation (10 to 20 cold a day, up to 50 in total including warming). Mission Inbox prices warm-up as a separate paid add-on, so only cold email is counted against its send allowance here. Example for 50 mailboxes: $199 + 20 extra mailboxes × $3 = $259; 50 × 15 × 30 = 22,500 sends, 12,500 above the 10,000 allowance = $13 (billed per 1,000); total $272.

MailboxesWinnrMission Inbox, mailboxes onlyMission Inbox at 15 cold emails/day
50$69 (Startup)$259$272
200$189 (Enterprise)$709$789
1,000$989 (Enterprise $189 + 800 × $1)$3,109$3,549

Mission Inbox's own calculator assumes about 660 emails per mailbox a month (roughly 22 a day); at that volume 50 mailboxes come to $282 a month. For very small senders, Lite is $50 for 15 mailboxes and 5,000 emails a month, which is cheaper than Winnr's $69 Startup plan if that is all you need.

Monthly cost per 1,000 daily cold sends

Mission Inbox's mailbox charges are what drive its cost; the per-email fee adds $30 a month for each 1,000 emails a day above the allowance ($1 per 1,000 × 30 days). At 15 cold emails per mailbox per day (monthly price ÷ cold emails per day in thousands):

MailboxesWinnrMission Inbox
50 (750/day)$69 ÷ 0.75 = $92.00$272 ÷ 0.75 = $362.67
200 (3,000/day)$189 ÷ 3 = $63.00$789 ÷ 3 = $263.00
1,000 (15,000/day)$989 ÷ 15 = $65.93$3,549 ÷ 15 = $236.60
Matching the dedicated IP

Mission Inbox includes dedicated IPs; Winnr charges $20 per IP on Enterprise. Winnr with 200 mailboxes and 2 dedicated IPs is $189 + $40 = $229 a month, against $789 on Mission Inbox at the same sending volume. Read when a dedicated IP is worth it.

When Mission Inbox is the better choice

When Winnr is the better choice

See Winnr pricing and SMTP for cold email. Other dedicated-infrastructure comparisons: Winnr vs Mailreef, Winnr vs Infraforge and Winnr vs Inframail, or all Winnr alternatives.

Frequently Asked Questions

Is Mission Inbox cheaper than Winnr?

Only for very small senders. As of October 2026, Mission Inbox Lite is $50/mo for 15 mailboxes and 5,000 sends. At 50 mailboxes sending 15 cold emails a day each, Mission Inbox Scale comes to about $272/mo against Winnr's $69; at 200 mailboxes it is about $789 against $189.

Does Mission Inbox charge per email sent?

Yes. The Scale plan includes 10,000 sends a month, and sends above that are $1 per 1,000. Lite includes 5,000 sends and pauses the account at the limit. Winnr has no per-email charges.

Does Mission Inbox include dedicated IPs?

Yes. Mission Inbox lists dedicated IP addresses on every plan and says mailboxes run on dedicated IPs with no shared pools. Winnr dedicated IPs are $20 per IP per month on the Enterprise plan.

Does Mission Inbox use Google Workspace?

No. Mission Inbox runs its own dedicated servers and IPs and says it replaces Google Workspace and Microsoft 365 for sending. Winnr is also its own SMTP/IMAP infrastructure, not Google Workspace or Microsoft 365.

What is MI Shield?

MI Shield is Mission Inbox's pre-send check. It scans content, headers, DNS and spam signals before emails are sent to catch risky messages. Winnr does not have an equivalent feature.

About this comparison. Winnr publishes this page. Competitor prices and features were checked on the providers' own sites on October 6, 2026: missioninbox.com/pricing (plans and the price calculator's published rates) and missioninbox.com (features and FAQ). Prices are in USD, before tax and domains unless stated. If something here is out of date, email info@winnr.app and we will correct it.