Deliverability + Compliance

Getting into the inbox isn’t luck — it’s infrastructure, authentication, and disciplined list hygiene working together. OptiPub is built deliverability-first, giving high-volume senders the authentication, monitoring, and compliance tools to reach the inbox and stay there.

Authentication that proves you’re you

SPF, DKIM, DMARC, and BIMI are the records mailbox providers use to confirm your mail is legitimate. OptiPub helps you configure them correctly on your own domain and keeps them valid over time — so providers trust your mail and your brand can appear with a verified logo. New to these? Our email authentication guides walk through each one.

Reputation monitoring built in

Every OptiPub client gets free access to Postmaster+, which connects to Gmail Postmaster Tools, Outlook SNDS, and more to surface complaint rates, blocklist status, and inbox placement in real time. You catch deliverability problems early — before they cost you a campaign.

Compliance without the headache

Built-in unsubscribe handling, list-unsubscribe headers, and consent tracking help you stay aligned with GDPR and CAN-SPAM. Honoring opt-outs cleanly and automatically protects both your subscribers and your sender reputation.

Infrastructure that protects your reputation

Dedicated IPs and queues — never shared — plus expert domain and IP warm-up mean your reputation is built by your practices alone. Pair IP Pools with verified Senders for full control of how your mail is sent and seen.

What you get

• Correctly configured, continuously valid SPF, DKIM, DMARC, and BIMI
• Real-time reputation and inbox-placement monitoring via Postmaster+
• Automated compliance and opt-out handling
• Dedicated, isolated sending infrastructure
• Consistent inbox placement at high volume

Better together

Deliverability starts at intake. Keep your list clean with Email Verification and Bot Protection, then let OptiPub’s infrastructure and monitoring carry it to the inbox.