Solutions / Outreach Platforms
Infrastructure for platforms that send on behalf of their customers.
If your product sends permission-based email from customer-owned domains, you carry their reputation. All of them, at once. Egressif gives each customer an isolated sending identity on professionally run shared infrastructure, so one customer's bad day never becomes everyone's.
The context
Why multi-tenant sending is brutal.
Multi-tenant sending has a brutal failure mode: reputation contagion. When many customers share infrastructure naively, the worst sender in the pool sets the reputation for everyone. One customer’s stale list raises the spam-foldering rate of every other customer’s carefully earned correspondence. Platforms that ignore this end up fielding placement complaints from their best customers because of their worst ones.
The engineering answer is isolation plus fairness. Every tenant gets its own sending identity, its own aligned SPF/DKIM/DMARC on its own domain, its own suppression lists, and its own slice of shared capacity, enforced by per-tenant rate budgets. Isolation contains damage. Fairness preserves throughput. Both have to be enforced by the platform itself. Policy documents do not throttle anyone.
Underneath it all sits compliance. Permission-based platforms live or die on provider trust: complaint rates under thresholds (Gmail publishes 0.3%), a working one-click unsubscribe, suppression that propagates immediately, and records to prove all of it when a provider or a regulator asks. That evidence trail should be a by-product of the infrastructure, not a quarterly scramble.
Your challenges
Where platform sending goes wrong.
One customer’s heavy sending degraded delivery for every other customer on the same infrastructure, and your support team paid for it.
Onboarding a customer domain (DNS zone, SPF, DKIM, DMARC, verification, mailboxes) is a multi-day engineering chore that scales linearly with sales.
Suppressions and unsubscribes don’t propagate fast enough across the platform, and compliance is asking pointed questions.
Support cannot explain individual delivery failures without borrowing an engineer for an afternoon.
B2B targets sit behind security gateways that behave nothing like Gmail, and your one-size sending profile gets quietly throttled by them.
How Egressif helps
What changes when every tenant is isolated.
Per-customer isolation, real isolation
Every customer domain is a separate sending identity with its own authentication, routing preferences, suppression lists, and reputation. A bad list in tenant A is invisible to tenant B. By architecture, not by luck.
Fair-share capacity enforcement
Per-tenant rate budgets are enforced at the delivery layer. The customer running a huge launch keeps sending at a sustainable pace inside their budget. Everyone else’s throughput is untouched.
Domain onboarding in hours, not days
A new customer domain flows through an automated pipeline (DNS zone, authentication records, provider verification, mailbox provisioning) with per-domain status you can surface in your own UI. Onboarding scales with sales, not with engineering headcount.
Layered suppression, enforced below the product
Hard bounces, complaints, unsubscribes, abuse reports, and per-account do-not-contact (DNC) and do-not-prospect (DNP) lists are enforced at the gate, with bounce classification driving suppression duration automatically. Your product cannot accidentally mail what the platform has suppressed.
Bounce rates that drop and stay down
Invalid, disposable, and long-dead addresses are filtered before any connection is made, and every hard bounce teaches the gate something permanent. Better still, the learning compounds across the whole network: an address that hard-bounces today is known platform-wide tomorrow, so no client pays reputation to rediscover a dead mailbox someone else already found. Bounce rates fall within weeks, receivers notice, and placement follows.
Gateway-aware B2B delivery
Mail bound for business security gateways is classified and handled according to what those systems tolerate: connection discipline, pacing, complete authentication. B2B placement holds up where your customers actually sell.
Audit-ready evidence
Per-message delivery records, suppression histories, and administrative audit logs give you provable answers for customers, providers, and compliance. As a by-product of normal operation.
Mailboxes as a platform feature
Provision real hosted mailboxes (with forwarding and filtering) in bulk for customers whose sending identities also need to receive. Replies, bounces, and threads land somewhere your product can use.
Fairness, drawn
One platform. Separate budgets.
FAQ
What platforms ask before building on us.
Do you allow cold email blasts?
No. Permission-based sending is a condition of using this network, with consent records to back it, and we enforce it with throttling, suspension, and termination. That discipline is precisely why mail from our infrastructure stays trusted, which is what your legitimate customers are paying for.
What do our customers see when one of them misbehaves?
The misbehaving tenant gets contained inside its own identity and rate budget, automatically. Other tenants see nothing, because nothing happens to them. You get notified with the evidence so your trust-and-safety process has something to work with.
Can our customers bring their own domains?
Yes. Each customer domain becomes its own tenant with its own authentication, suppression, and reputation. Onboarding runs through an automated pipeline with per-domain status your product can display.
How fast do unsubscribes and complaints take effect?
At the delivery gate, immediately. Suppression is enforced below your product, so even a bug in your own code cannot mail an address the platform has suppressed.
Can we expose delivery data inside our own product?
The raw material exists for every message: accepted, deferred, bounced, suppressed, with the receiver’s verbatim response, recorded per tenant. Where your backend can consume a feed, we wire one in, and what you surface to your customers in your own UI is then your call.
Related reading
Go deeper in the reference library
The problem
Your largest customer launched a huge sequence on Monday morning. By noon, every customer’s mail was deferring, support was flooded, and you were choosing which customer to throttle by hand. Meanwhile your biggest account wanted to know why you were slowing them down.
With Egressif
On Egressif, the big sender ran inside its own fair-share budget from the first minute. Sustained, predictable throughput for them. Zero impact on anyone else. Nobody opened a ticket, and you learned about the launch from the weekly report instead of an outage.
Give every customer their own clean runway.
Domains, rough volume, current providers, and what hurts. You will get a straight answer on fit, and a real number, in one conversation.