Technical mail-deliverability measures

Not all measures are feasible in a SaaS environment, but if you think we missed an important piece to improve deliverability, please do reach out.

To ensure optimal deliverability, Ambassify requires DKIM and SPF for all outgoing emails.

These standards are required and must be valid for an email to be delivered reliably into a user's inbox.

Regardless of the email configuration you've chosen to use with Ambassify (shared or whitelabel), these standards will be enforced.

DKIM is a digital signature that verifies that the email was sent by an authorized party and was not tampered with during delivery.

Ambassify uses DKIM (through our email provider) to validate domain ownership. We won't be able to send emails on behalf of your company until these records have been installed in your DNS.

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SPF is a DNS record that specifies which servers are allowed to send emails using the domain.

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Ambassify's email infrastructure is configured such that the domain used by the sender must match or be a subdomain of the domain used by the DKIM. This ensures DKIM alignment.

Similarly, for SPF we ensure that the From header domain matches or is a subdomain of the envelope From value. This ensures SPF alignment.

Ambassify configures a DMARC policy on the shared domains used for emails sent by the platform.

Customers with a whitelabel email domain that want to enforce a specific DMARC policy will have to create the record themselves.

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The List-Unsubscribe header is a standardized mechanism to let your recipients unsubscribe from your emails.

Many email clients will show a dedicated, clearly visible link in the email-client UI.

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Ambassify will automatically generate a text-only version of your HTML emails to ensure that they are accessible by any user or email client.

Some customers have control over the mail server their emails will be going to. You might be using Ambassify to reach out to your own employees using their work address.

In these cases, your IT department might whitelist emails sent by Ambassify using any of the following data points:

The team at Ambassify has identified that under specific conditions Outlook.com mail servers might modify the whitespace in an email before validating the DKIM signature. However, this breaks the DKIM signature and thus causes the email to be identified as spam.

Ambassify has implemented a workaround that ensures that this edge case is not triggered during delivery.

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