How Postfaro gets your campaigns into the inbox
You keep sending from the tools you know. We take care of everything between your “Send” button and your recipients’ mail servers.
one per sender address
↩ Replies are forwarded to your real mailbox.
Step 1 — Choose your sending domain
Mailbox providers judge every email by the domain it comes from. Your everyday domain — the one your team uses for quotes, invoices and replies — is too valuable to risk on campaigns. So Postfaro always sends from a separate sending domain. You pick one of three paths:
- A — A new domain from us. We register a .com or .net in your company’s name. No technical work.
- B — A spare domain you own. You change its two nameservers at your registrar.
- C — A subdomain like
news.yourcompany.com. You add two NS records; your main domain stays where it is.
Step 2 — We build and lock the technical setup
Once you’ve paid and your domain is connected, our automation runs through every step on its own. You can watch it in your panel:
- Create the DNS zone on our nameservers
- Publish SPF — who is allowed to send for your domain
- Generate a unique DKIM key and publish its public half — the signature that proves your emails weren’t altered
- Publish DMARC — and route the reports to us so we can watch for problems
- Set up a return-path subdomain so bounces are aligned with your domain
- Set up MX so replies can be forwarded to you
- Create your sender addresses and SMTP logins
- Check from the outside that every record is publicly visible and correct
The records your sending depends on are locked: nobody can accidentally break them. You can still add your own website or verification records in the DNS panel.
When everything is ready, you receive an email with your SMTP details, the guide for your tool and your warm-up schedule.
Step 3 — Connect your tool
Each sender address (news@, events@…) gets its own username and password. Paste them into your CRM, Outlook or newsletter plugin — our guides walk you through it. A login can only send as its own address, so a leaked password can’t be used to impersonate your other senders.
Only campaigns, not urgent mail. Order confirmations, password resets and everyday email should stay on your existing mail server. Our guides show how to route only bulk email to Postfaro.
Step 4 — Send. We do the careful part.
Every message you send passes through these steps:
- Content check — we look for spam signals, blocklisted links and phishing.
- Do-not-mail check — addresses that bounced, complained or unsubscribed before are dropped and listed in your “cancelled addresses” report.
- One-click unsubscribe — we add the header that Gmail, Yahoo and others show as an “Unsubscribe” button.
- DKIM signature — with your domain’s own key.
- Daily cap and queue — up to 5,000 per day go out; the rest waits in the queue for the next days. You get a summary like “22,000 emails queued, last send on 18 March” and can cancel at any time.
- Pacing — we adjust the speed per receiving provider, the way Gmail and Microsoft prefer.
Step 5 — We keep watching
- Warm-up: new domains start with a lower daily limit that rises step by step over the first weeks.
- Your first day is a trial: we watch bounces and complaints closely.
- Automatic safety pause: if more than 2% of messages bounce or more than 0.1% of recipients complain, sending pauses and we tell you why and what to do. It’s a brake that protects your domain before mailbox providers lose trust in it.
- Reputation monitoring: DMARC reports and bounce data are processed continuously.
What we don’t do
- We don’t store your contact lists. They stay in your tools. Messages pass through us only to be delivered.
- We don’t change your CRM. Cancelled addresses are reported to you; you decide what to do with them in your own system.
- We don’t touch your main domain. Not even in path C — there you only add two records that point a subdomain to us.
- We don’t promise the impossible. No one can guarantee inbox placement — receiving providers decide. We make sure everything on the technical side is right, and we stop sending before a bad list can hurt you.