Deliverability
Own-mailbox warm-up versus a shared warming network
MAILTIG warms mailboxes by exchanging mail between accounts you connected. It is not a pool of other customers' inboxes. Each message costs 0.1 credit.
By MAILTIG editorial. Reviewed by Engineering (Deliverability awareness) on 5 November 2026. Next review due 4 February 2027. 6 minute read.
MAILTIG warm-up exchanges messages between mailboxes you already connected. It is not a shared network of other customers' inboxes.
What that means in the product
You need at least two connected mailboxes. MAILTIG ramps traffic between them. Each warm-up message costs 0.1 credit. Failed attempts are not charged. Recent failures above 5% pause the ramp.
The point is to exercise your sending identity on your domains, under your provider rules. Reputation is still yours.
What a shared network is (and is not here)
Some outreach tools route warm-up through a pool of mailboxes they operate or that other customers donate. MAILTIG does not do that. It does not buy you placement in a stranger's inbox. It does not replace Google or Microsoft policy.
If you need a pool, MAILTIG is the wrong product for that job. If you want a visible ramp between the mailboxes you actually send from, this is the model.
How it sits next to DNS checks
Warm-up is optional once you have two mailboxes. SPF, DKIM and DMARC checks are not optional before a campaign starts. A passing DNS check still does not prove inbox placement.