See How Cascadia Compares to the Big Transactional Email Platforms

Mail your application sends to one person because that person did something. Password resets, receipts, order confirmations, shipping notices, invites. It is triggered by an event rather than scheduled by a marketer, and the recipient is usually sitting there waiting for it, which is why a ten minute delay becomes a support ticket.

Almost always authentication or reputation. If SPF, DKIM and DMARC are not aligned on the exact sending domain, a mailbox provider has no reason to trust the message. Reputation is the slower problem. Sending receipts from the same domain and IP as your newsletter means one bad campaign drags your resets down with it. We separate the streams and keep the authentication correct as your infrastructure changes.

Intent and consent. Marketing mail goes to a list on a schedule and it can wait. Transactional mail goes to one person in response to something they just did. Mailbox providers score the two differently, so mixing them on one sending identity costs you deliverability on the mail you can least afford to lose.

Below roughly a hundred thousand messages a month, no. A dedicated IP only earns a reputation if you send enough volume to keep it warm, and a cold dedicated IP performs worse than a well run shared pool. We tell you when your volume crosses that line, and we handle the warmup when it does.

They are the DNS records that let a mailbox provider verify you sent what you claim to have sent. We set them up and align them to your sending domain. Then we monitor the DMARC reports afterward, which is the step most teams skip and the one where the useful signal lives.

A sending API accepts your message and hands it off. Everything after that is yours. We own the domain authentication, the reputation monitoring, the bounce and complaint handling, the suppression list, the DMARC reporting, and the response when a provider starts throttling you. What you put down is the operational work, not the sending.

Seconds, not minutes. A password reset that takes four minutes produces a second reset request and then a support ticket. We monitor delivery time by mailbox provider and treat a sustained delay at any one of them as an incident.

A hard bounce means the address does not exist, and it must never be sent to again. Repeated sends to dead addresses are one of the fastest ways to damage a sending reputation. We maintain the suppression list automatically and surface the pattern when bounces cluster, because a spike in hard bounces usually means something upstream in your signup flow broke.

Yes. We stand up the new sending identity, authenticate it, warm it against a slice of your traffic, and cut over once the delivery numbers hold. Your application keeps sending throughout. Migrations go wrong when somebody moves all the volume at once onto a domain with no history.

We handle the sending layer and any templates that live in it. If your templates sit inside your application they stay there, and we work with your team on the parts that affect delivery, such as the plain text alternative and the list headers. Design work on a marketing template is a different service.

It pays for itself once transactional mail is load bearing, meaning a delivery failure costs you a customer or a support hour. That is usually somewhere above ten thousand messages a month. A small business sending two thousand invoices is a better fit than a side project sending fifty thousand notifications nobody reads.

Then keep it. SES is the cheapest way to move mail and it is the right answer if you have an engineer who enjoys owning deliverability. What you would be buying from us is that engineer time back. We are happy to run the managed layer on top of your existing SES account rather than move you off it.

Delivery rate by mailbox provider, time to inbox, bounce and complaint rates, and DMARC alignment. Open rates are close to meaningless on transactional mail and we do not report them as a success metric. If Gmail delivery drops two points, you hear it from us first.

No. The authentication, the suppression list and the monitoring sit with us and travel with you. We pick the sending provider that fits your volume and your compliance requirements, and we will move you when that stops being true.

Give us DNS access for the sending domain and tell us what your application sends today. We audit what is going out, fix the authentication, and take over the sending path. Most migrations are live inside two weeks.