Custom email domain
By default, each client receives documents at an address like \{prefix\}@\{your-organisation\}.ottocapture.email. You can configure a custom domain so clients send documents to addresses on your own domain instead. For example, acme@docs.smithaccounting.com. This gives you complete control of the branding your clients see, and gives them confidence they are sending their documents to a legitimate service.
Setting up a custom domain
Section titled “Setting up a custom domain”-
Add your domain: Go to Settings → Email and enter your custom domain
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Configure DNS records: Add the required DNS records to your domain (see below)
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Verify: Return to the email settings page and click Verify. Capture checks that your DNS records are correctly configured
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Start receiving documents: Once verified, your custom domain is active and ready to receive emails
Required DNS records
Section titled “Required DNS records”You need to add the following records to your domain’s DNS configuration. The exact values are shown on the email settings page after you add your domain.
MX record
Section titled “MX record”The MX record tells email servers where to deliver mail for your domain. Point it to the Capture mail server:
| Type | Name | Value | Priority |
|---|---|---|---|
| MX | your-domain | inbound-smtp.eu-west-2.amazonaws.com | 10 |
The specific region and hostname are shown on your email settings page.
TXT record (domain verification)
Section titled “TXT record (domain verification)”This record proves you own the domain:
| Type | Name | Value |
|---|---|---|
| TXT | _amazonses.your-domain | Provided on settings page |
Recommended DNS records
Section titled “Recommended DNS records”These records are not required for verification, but are strongly recommended to prevent others from sending email that appears to come from your custom Otto Capture domain.
SPF record
Section titled “SPF record”An SPF record declares that no mail servers are authorised to send email from your custom Otto Capture domain (since it’s only used for receiving):
| Type | Name | Value |
|---|---|---|
| TXT | your-domain | v=spf1 -all |
DMARC record
Section titled “DMARC record”A DMARC record tells receiving servers to reject any email claiming to come from your custom Otto Capture domain:
| Type | Name | Value |
|---|---|---|
| TXT | _dmarc.your-domain | v=DMARC1; p=reject; sp=reject |
Verification
Section titled “Verification”When you click Verify, Capture checks:
- MX record: Your domain’s MX record points to the correct mail server
- Domain ownership: The TXT verification record is present
Both checks must pass for the domain to become active. DNS changes can take up to 48 hours to propagate, though most providers update within minutes.