EmailWarmup uses automated mailbox exchanges and AI-generated messages to help build sender reputation for cold email. Connected mailboxes are paired bidirectionally with other active mailboxes in its network. Subjects and replies use rotating topics and tones, and retain a [WARMUP] subject tag. Users can choose slow, medium, or fast ramp-up speeds that gradually raise sending volume over days. Engagement features include threaded replies, reads, stars, spam-folder rescue, and delivery checks. Gmail can be connected with OAuth, while other mailbox connections can use SMTP/IMAP credentials. The service says those credentials are encrypted at rest, mailbox access is scoped to the user account, and it does not read or store personal email content. It retains account data while an account is active and says deleted account data is removed within 30 days. EmailWarmup is available on web and API. A free plan is listed, and Starter costs $19.00 USD per month. The maker says paid limits are enforced in the app, but billing is not connected yet and paid plans are enabled manually; Starter checkout is described separately as available through Dodo Payments.
Who it is for
The maker names founders, agencies, recruiters, sales teams, creators, and operators as intended users. It suits people warming mailboxes, but not those seeking outreach campaign sending or a guarantee of inbox placement.
What is good
- Offers slow, medium, and fast ramp-up schedules.
- Supports threaded replies, reads, stars, and delivery checks.
- Gmail connects with OAuth; SMTP/IMAP connections are supported.
- Personal email content is not read or stored, per the service.
- Multiple mailboxes are supported.
What to know first
- The service does not send outreach campaigns.
- It cannot fix an already blocklisted domain.
- Inbox placement is not guaranteed.
- Paid limits are enforced, but billing is not connected yet.
Verdict
EmailWarmup provides mailbox warmup exchanges, engagement actions, and adjustable ramp-up speeds, with stated protections for credentials and personal email content. Note that it does not send campaigns or guarantee inbox placement, and paid access currently involves manual enablement.
EmailWarmup plans and pricing
All plansCompared on email warmup software
- Free plan
- Yes
- Warmup network
- shared
- Daily email limit
- 100 /day
- Custom warmup schedule
- Yes
- Spam monitoring
- Yes
- Multiple mailboxes
- Yes
