
Google and Microsoft now reject mail from senders who skip the rules. Syntr sets them up and watches them for you.
- Auto-pause
- new sends stop when bounces or complaints get critical
- Warm-up
- volume ramps up while reputation is watched
- In the app
- buy domains and mailboxes, set up for you
- Spread
- several mailboxes per sequence
The health score pauses new sends before your domain is harmed. Try the spike.

- outreach@getyourbrand.coWarm-up · day 21 of 21Ready
- hello@tryyourbrand.coWarm-up · day 17 of 21Warming
- team@yourbrand-mail.comWarm-up · day 12 of 21Warming
- sales@meetyourbrand.coWarm-up · day 6 of 21Warming
Google and Microsoft now reject mail from senders who skip the rules. Syntr sets them up and watches them for you.

- 01
Domains and senders.
Verify sending domains and senders inside Syntr.
- 02
Buy mailboxes in the app.
Order domains and mailboxes, set up for you, or import ones you already have.
- 03
Warm-up.
Volume ramps up gradually while reputation is monitored.
- 04
Health score with auto-pause.
When bounces or complaints reach critical levels, new sends stop until you fix the cause.
- 05
Spread the risk.
Several mailboxes per sequence, so no single address carries everything.
- 06
Dedicated IPs.
Workspace IP options for high-volume senders.
One contact record across every channel, so nothing is copied and nothing is lost.

Cold email that turns into conversations.

Email marketing for the people who said yes.

Run WhatsApp like a channel, not a phone.

Every conversation and deal on one timeline.

Meet Nova, the assistant that works across Syntr.

Plan, design and publish every post from one calendar.
Both. Use sequences to reach new buyers, and campaigns and flows for people who opted in. Both share one contact record.
No. WhatsApp requires opt-in. Syntr moves a conversation to WhatsApp after the person agrees, for example after a positive reply or a form.
Syntr warms new mailboxes, spreads sending across mailboxes and pauses sending when bounces or complaints rise. No tool can guarantee the inbox, but these steps protect your domain.
An AI-written email costs 1 credit per person; researching a lead costs 1 credit; translating a campaign costs 2 credits per language. Template emails use no credits. Top-up credits never expire.
Shopify, Slack, Google Meet, Apollo (bring your key), webhooks and an API today.

Start with 500 leads, free.
Set up your first sequence today. Upgrade when it works.
