Email Infrastructure
Deliverability you own, on domains you control
Verify as many sending domains as you need, give every teammate the right From address, track opens, clicks and bounces, and thread replies back onto the record — deliverability treated as engineering, not luck.
Inside this pillar
What Email Infrastructure includes
Deliverability
Domain authentication ranked by what actually matters, automatic bounce handling, warm-up ramps, link domains that match your sending domain — the unglamorous details that decide whether mail lands.
Explore Deliverability →Sender permissions
Personal senders each teammate verifies themselves, shared senders granted per member or to everyone, and one pure rule that decides who may send from what.
Explore Sender permissions →How it works
- 01
Verify your domain
Add DNS records once — Solstral checks them automatically and keeps verification status current without support tickets.
- 02
Set up senders
Shared team addresses, personal mailboxes with self-serve verification, one workspace default — and per-user rules for who sends from what.
- 03
Send and learn
Opens, clicks, bounces and complaints land on the record. Replies thread to the right deal automatically. New domains warm up on a managed ramp.
In real workflows
How teams actually use Email Infrastructure
Email Infrastructure, on your own records

Inside Email Infrastructure
- DeliverabilityDomain authentication ranked by what actually matters, automatic bounce handling, warm-up ramps, link domains that match your sending domain — the unglamorous details that decide whether mail lands.
- Sender permissionsPersonal senders each teammate verifies themselves, shared senders granted per member or to everyone, and one pure rule that decides who may send from what.
The best way to evaluate it is on your own records — import a CSV on the free plan, or bring a real scenario to a demo and we'll build it live.
Book a demo →Frequently asked questions
Yours. Every campaign, sequence and one-to-one email sends from your verified domain, and every link in those emails uses your domain too.
Inbound replies are matched to the original thread and attached to the right contact, company and deal automatically — no BCC address to remember.
Hard bounces and complaints are suppressed platform-wide immediately, protecting your sender reputation on every future send.