Files on your own domain
Your name on the download link.
Download links for the files you send can use a subdomain you choose, such as files.yourdomain.com. It takes one CNAME record.
In short
What is a custom download domain?
Large files often travel as a download link rather than inside the message. A custom download domain puts that link on a subdomain of the sender's own domain.
2MB
per message before files go as links on your domain
3
failed checks in a row before links fall back
2hours
without a pass before links fall back too
How it works
One record on the Files tab
The Files tab suggests files.yourdomain.com and shows one CNAME record to add at your DNS provider. On a domain connected to Cloudflare, Sync writes it for you.
Active after a passing check
New download links carry the name once a check over HTTPS passes. Three failures in a row send them back to the OpenEmail address until one passes.
Sent mail keeps its name
Links in mail already sent work while the old CNAME stays. On a domain connected to Cloudflare, a rename or removal takes it out and they stop working.
What you get
In the product today
Any subdomain
Keep files.yourdomain.com or type any other subdomain.
Per sending domain
Any address on that domain uses it for download links.
No inbound needed
The ownership TXT is enough, before any mail arrives.
Downloads only
It serves files sent by its own workspace, nothing else.
Good practice
Getting the most out of it
- 01
Plain CNAME, no proxy
Add the record with any proxying turned off.
- 02
Leave the old record
After a rename, keep the old CNAME so earlier links still download.
- 03
Check for Active
Automatic only sends links once the status reads Active.
Questions
Asked often
Keep going
Works well with
Tracked links and the open pixel on a subdomain you choose, such as links.yourdomain.com, instead of the OpenEmail address.
Pick them with the paperclip or paste them in. A pasted image lands in the body rather than the file list, and a file dragged onto the composer is not attached at all. On an OpenEmail mailbox incoming files sit in object storage, one object each, and opening a thread pulls every one of them.
Start
Your domain,
your mail.
Point a domain at OpenEmail and read it in a mailbox built around it. The free plan covers one domain.
