App email that keeps the replies
Mailroomly app email sends your receipts, password resets and notifications through a REST API that also speaks SendGrid’s, Mailgun’s and Postmark’s. Change the host and the key, and your code keeps working. Every send shows its route from accepted to delivered, and replies land in your team inboxes.
Last updated October 20, 2026
Start in three steps
Create an app and its key
One key per app, with its own daily limit if you want one.
Point your SDK at Mailroomly
Change the host and the key. Your requests and webhook handlers stay as they are.
Verify your domain
Publish its DNS records, and your mail is signed as your own.
What changes in your app
The host each SDK talks to, and the key. Nothing else.
SendGridapi.sendgrid.comapp.mailroomly.com
Mailgunapi.mailgun.netapp.mailroomly.com
Postmarkapi.postmarkapp.comapp.mailroomly.com
…and the key: a Mailroomly key in place of the old one.
Every send, from accepted to delivered
Activity shows today’s sends and arrivals like a departures board, each with its route. Open one to see where it is.
Departures
- 10:42rita@quintadorio.ptReceipt for order #4822Opened
- 10:41pedro.alves@example.ptReset your passwordDelivered
- 10:39ana@clinicaaurora.ptYour appointment tomorrowDelivered
- 10:38tomas@exemplo.ptOrder #4821 has shippedSent
- 10:36old@exmplo.ptWelcome to Loja NovaBounced
Transactional mail always goes first
Receipts and password resets never wait behind a newsletter. Each organization sends with its own reputation, watched for you: a rise in bounces pauses that kind of email before it harms the rest.
| Record | Type and name | What it is for |
|---|---|---|
| DKIM signature | CNAME at …._domainkey.yourcompany.com | Signs every email, and proves you own the domain. |
| MAIL FROM (MX) | MX at bounce.yourcompany.com | Where bounce reports come back. Your normal mail isn’t affected. |
| MAIL FROM (SPF) | TXT at bounce.yourcompany.com | Says which servers may send for that return address. |
| DMARC policy | TXT at _dmarc.yourcompany.com | Tells receivers what to do with mail that fails the checks. Marketing needs one. |
Questions about app email
Can I keep my SendGrid, Mailgun or Postmark code?
Yes. Mailroomly speaks their sending APIs and webhook formats. Point your SDK at Mailroomly’s host and use a Mailroomly key.
Where do replies to my app’s email go?
To the team inbox of the address you send from, in the thread with the email they answer. Your team or your agent answers from there.
Does a newsletter slow down my receipts?
No. Transactional mail always goes before marketing, and the two are watched apart.
Can my app hear about deliveries and bounces?
Yes. Webhooks tell your app about every event: delivered, bounced, opened, clicked and received.
Bring all your email into one place.
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