Mailforge is built for teams that create inboxes from code or an AI agent: it confirms a public API and an official MCP server, and sells private SMTP inboxes at $3 each, or $2.40 at volume, with a minimum order of 10. It scores 46 in Cold Email Index, 29th of 52 inbox providers. Most reasons to compare Mailforge alternatives come from its own site, which says it doesn't offer warm-up in the price, Google Workspace or Microsoft 365 inboxes, a built-in sequencer, dedicated IPs or a way to try before paying in full.
Every fact is from the vendor's own site, same rules for everyone · Method · Disclosure
Sells private SMTP inboxes. Inboxes arrive pre-warmed, so you can start sending sooner. Deliverability: automatic SPF/DKIM/DMARC. It has a public API and an official MCP server for automation.
Each bar is the score split by group (group weight in grey). Score out of 100 from conditions confirmed
on the vendor's own site, plus up to 25 points for the cost of a 30-inbox setup. Prices shown: monthly billing, smallest public package.
Mailforge's strong point is automation, so check that first. Four tools here confirm an official MCP server: Outreach2day, Icemail, Zapmail and Maildoso. Of those, Outreach2day and Icemail also confirm everything else Mailforge confirms. Zapmail says it doesn't offer private SMTP inboxes, and Maildoso says it doesn't offer pre-warmed inboxes. Next, decide on inbox type. Google Workspace and Microsoft 365 inboxes are confirmed by MailOptimal, MailDeck, Icemail, Zapmail and Hypertide, and Mailforge offers neither. Then compare the monthly bill for 30 inboxes: $187 at Mailforge with a separate tool for warm-up and sending, $75 at Outreach2day with both built in, $119 at MailOptimal and $127 at MailDeck. MailDeck has the lowest inbox price at $0.60, but asks for at least 50 inboxes.
Questions and answers
What is the best Mailforge alternative?
By score, MailOptimal ranks highest among Mailforge alternatives in the index with 83/100 (1st). The right pick depends on what you need: the table above shows the conditions each one confirms.
Is there a cheaper alternative to Mailforge?
Mailforge charges $3 per inbox at its smallest package. Cheaper per inbox: MailDeck ($0.60), MailOptimal ($2) and Outreach2day ($2.50).
Which Mailforge alternatives include warm-up in the price?
MailDeck and Outreach2day confirm ongoing warm-up included in the inbox price.
Does Mailforge offer dedicated IPs?
No. Mailforge's own site says dedicated IPs aren't offered. In this list MailOptimal, MailDeck, Icemail, Zapmail, SkySenders and Hypertide confirm them. Outreach2day and Maildoso don't state dedicated IPs on their sites.