Deliverability
Email warm-up, explained without folklore
MAILTIG warm-up exchanges mail between mailboxes you already connected. It needs at least two, costs 0.1 credit per message, and is not a shared warming network.
By MAILTIG editorial. Reviewed by Engineering (Deliverability awareness) on 5 November 2026. Next review due 4 February 2027. 6 minute read.
MAILTIG warm-up is a ramp between mailboxes you already connected. It needs at least two, costs 0.1 credit per message, and is not a shared warming network.
What MAILTIG actually does
Warm-up sends mail between your own connected mailboxes. You need at least two. Each warm-up message costs 0.1 credit. Business and Agency plans include the feature; Free does not.
It does not join a pool of strangers' inboxes. It does not buy you reputation. Provider policies still apply.
What it is for
A brand-new mailbox that has never sent has no history. Exchanging small volumes between mailboxes you control is one way to create some authenticated traffic before a campaign. It is optional. It is not a substitute for:
- SPF, DKIM and DMARC that pass
- People who asked to hear from you
- A daily cap you can defend
What to watch
- If you only have one mailbox, warm-up cannot run.
- If those mailboxes share a damaged domain, talking to each other will not repair it.
- Provider sending limits still bind. MAILTIG's per-mailbox cap (50 by default for personal mailboxes) still binds.
Read the deliverability page and the DNS guide before you treat a warm-up graph as proof of anything a recipient will see.