Mailforge

Mailforge provides cold email infrastructure on a distributed, shared IP pool, spreading your mailboxes across a network used by a very large number of businesses. The aim is to give outbound teams many sending mailboxes at a low cost without managing servers themselves.

You buy domains and mailbox slots in one place, and Mailforge sets up DKIM, DMARC and SPF automatically, then hosts and maintains the mailboxes. SSL and domain masking are available as an add-on for tracking links. Mailbox slots are flexible: you pay for the slots you buy and can delete and recreate mailboxes inside them without extra cost. Expert support is included.

Mailforge is part of the Forge family, alongside Salesforge for sending, Infraforge for private infrastructure, Primeforge for Google and Microsoft mailboxes and Warmforge for warm-up, and it connects with Salesforge for multichannel sequences.

Mailboxes cost $3 each a month on yearly billing, with two months free compared with monthly billing, and a minimum of ten mailbox slots. Domains are $14 a year for a .com. There is no free trial, but you can explore the app before buying domains and mailboxes.