Allowlist Haiilo's email domain or IPs

For guaranteed email delivery, Haiilo advises including Haiilo's email domain, links, or IP addresses in your company's email allowlists. This will ensure that all emails, such as invitations, password reset requests, daily digests, newsletters, and more, reach your users without issues.

Email domain

Haiilo's system emails and newsletters are sent from no-reply (at) Allowlisting this address is often enough to ensure that the emails are allowed to be received by your company's email client. 

IP addresses

In other situations, it can become necessary to allowlist specific IP addresses. Haiilo uses these IP addresses to send emails:

  • For system emails (daily digest email, reset password emails, etc.):
  • For newsletters emails:


Haiilo's emails include links that allow users to create their accounts, reset their passwords, and access the platform and its content. If your email client uses a URL scanner, you might want to allowlist individual links:

  •* (used in, e.g., invitations)
  •* (used in, e.g., daily digests)

Technical specifications about Haiilo's emails

To provide a reliable and secure email service, Haiilo uses the following:

  • MANDRILL: Mandrill is a reliable, scalable, and secure delivery API for transactional emails from websites and applications. It's ideal for sending data-driven transactional emails, including targeted e-commerce and personalized one-to-one messages.
  • SENDGRID: SendGrid is a cloud-based SMTP provider that allows us to send email without maintaining an email server. SendGrid manages all technical details, from scaling the infrastructure to ISP outreach and reputation monitoring to allowlist services and real-time analytics.
  • DMARC: DMARC, or Domain-based Message Authentication, Reporting & Conformance, is an email authentication protocol. It builds on the widely deployed SPF and DKIM protocols, adding a reporting function that allows senders and receivers to improve and monitor the protection of the domain from fraudulent email.

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