Setting Up Your Business Email Sending: What to Expect
Before your system can send appointment reminders, follow-ups, and campaigns that actually reach the inbox, your domain needs authenticated email sending. This is a one-time setup that Symphony Core handles during onboarding — here's what happens, what we need from you, and what to expect while it takes effect.
What We Set Up (and Why)
We configure a dedicated sending subdomain on your domain — typically sc.yourbusiness.com — and add a small set of DNS records that prove to Gmail, Outlook, and Yahoo that your email is legitimate:
- SPF — declares which servers may send email for your domain
- DKIM — cryptographically signs each message so it can't be forged
- DMARC — tells receiving inboxes what to do with messages that fail the checks
Why a subdomain instead of your main domain? It keeps your automated sending reputation separate from your day-to-day business email, so neither can hurt the other. The full explanation is in Why Emails Look Different.
What We Need From You
Just one thing: domain access, which you've likely already provided via the onboarding checklist. If we have registrar access (see Connect Your Domain), we add the records ourselves. If you prefer to add them, we send exact values to paste in — they must match character for character, so copy and paste rather than retyping.
One detail for Cloudflare users: these records must be set to DNS only (grey cloud). Our Cloudflare guide shows where.
The Timeline
| Step | Who | Typical time |
|---|---|---|
| Records added at your registrar | Us (or you, with our values) | Minutes |
| Records verify | Automatic | 2 to 24 hours, occasionally up to 48 |
| Test email sent and confirmed in the inbox | Us | Same day as verification |
We confirm every record shows verified and send a test email — checking that it lands in the inbox, not spam, and shows the correct sender — before we call this done.
Keeping Deliverability Strong
Authentication opens the door; sending habits keep it open. Two things to know:
- New domains warm up. A freshly authenticated sending domain has no reputation yet, so early sending starts modest and ramps up gradually. We manage this pacing — if your first campaigns feel conservative in volume, that's deliberate.
- Every email includes an unsubscribe link. It's required, and honoring it quickly actually protects your sender reputation.
If you ever notice automated emails landing in spam, tell us — the usual causes (a new domain still warming, volume spikes, or content triggering filters) are all fixable, and we'd rather tune it early.
One More Thing: Your Branded Email Address
Sending is separate from receiving. If your business doesn't yet have a branded address (like [email protected]), we'll set one up during onboarding — it's required for A2P text registration and it looks far more professional than a free address. For why owning your business email matters long-term, see Own Your Business Email.
Key Takeaways
- We set up an authenticated sending subdomain (SPF, DKIM, DMARC) so your automated email reaches the inbox.
- You provide domain access; we handle the records, verification, and a live inbox test.
- Verification typically completes within a day; new domains then warm up gradually by design.
- A branded email address is part of this setup and required for text registration.
Questions about your email setup? See How to Get Support.