Sipher
Sipher

Custom Domains

Use your own domain with SipherMail

Adding a Custom Domain
  1. Go to Admin → Domains (for admins) or Settings → Domains (for users)
  2. Click "Add Domain"
  3. Enter your domain name (e.g., example.com)
  4. Configure the required DNS records (see below)
  5. Wait for DNS verification (usually a few minutes)
Required DNS Records

SPF Record

Type: TXT

Name: @ (or your domain root)

v=spf1 include:mail.sipher.net ~all

DKIM Record

Type: TXT

Name: siphermail._domainkey

v=DKIM1; k=rsa; p=YOUR_PUBLIC_KEY...

DMARC Record

Type: TXT

Name: _dmarc

v=DMARC1; p=quarantine; rua=mailto:dmarc@yourdomain.com

BIMI Record (Optional)

Type: TXT

Name: default._bimi

v=BIMI1; l=https://yourdomain.com/logo.svg; a=https://yourdomain.com/cert.pem
Verification Status
SPF: Verified
DKIM: Verified
DMARC: Pending

Use the "Check DNS" button in the domains page to verify your records.