Email Warmup apps

Terlido

Terlido is cold email outreach software that puts inbox placement first. Every connected mailbox keeps warming while it sends, warmup and campaigns share one daily send budget per mailbox, and campaigns pause on their own when bounces spike. It adds live SPF, DKIM and DMARC checks, multi-step sequences, lead lists and enrichment, and a shared inbox for replies. Free plan with mailbox warmup forever; paid plans per seat for email, multichannel and agency use, with a 14-day trial.