Best Cold Email Mailbox Providers (2025)
We evaluated mailbox quality, Google Workspace infrastructure, setup speed, deliverability, admin control, integrations, and risk.
ColdMail (Editor’s Choice)
Dedicated Google Workspace mailboxes; deliverability-optimized setup, admin control, AI warmup available.
Instantly
All-in-one outreach platform; compare infrastructure and mailbox control.
Mailreef
Mailbox provisioning; compare setup speed and risk.
Mailforge
Mailbox provider; see differences in admin access and compliance.
Maildoso
Mailbox provider; compare cost, scaling, and risk profile.