Email Infrastructure & Deliverability

Authentication is the price of admission

Google and Microsoft now enforce what used to be best practice: mail without aligned SPF, DKIM, and DMARC gets throttled, junked, or rejected outright. We implement all three correctly, which is rarer than it sounds:

• SPF that enumerates your real senders and ends in a hard fail, not a lazy ~all shrug.
• DKIM signing on every stream: corporate mail, marketing, transactional, and the invoicing SaaS nobody remembered signs mail as you.
• DMARC moved deliberately from monitor to quarantine to reject, using aggregate reports to find legitimate senders before enforcement breaks them.

DMARC does double duty: it protects deliverability, and it's your primary defense against attackers spoofing your domain at your own clients. That's a real exposure for any firm that moves money on emailed instructions.

Separate streams, separate reputations

The fastest way to land your invoices in spam is to blast a newsletter from the same reputation that carries them. We architect sending so each stream has its own lane: corporate mail through Microsoft 365, marketing through a dedicated platform on its own subdomain, transactional mail through its own authenticated relay. A campaign mistake then costs you a campaign, not payroll notifications.

Owned sending infrastructure

For firms that send campaigns at volume, we deploy and operate a self-hosted campaign platform on hardened infrastructure, sending through Amazon SES, with warm-up schedules, per-brand authentication, and list hygiene built in. Against per-subscriber SaaS pricing, the economics usually pay for the engagement; unlike a shared sender, your reputation is actually yours.

Migration off shared senders is handled as a project: authenticate the new stream, warm it up on engaged recipients, move volume gradually, and watch the reputation metrics until they are stable.

Hygiene and monitoring

Deliverability decays without maintenance. Managed sending includes bounce processing, suppression-list discipline (once unsubscribed, provably never mailed again: a compliance requirement, not a courtesy), spam-complaint feedback loops, and monitoring of DMARC reports and blocklists, with email deliverability a live line on the same ops board as everything else we run for you.