Clients may not receive calendar invites due to their e-mail security settings. Many email servers implement strict checks, especially for emails originating from addresses with the same domain.
How to resolve this issue?
To address this problem, clients should follow these steps:
Review Security Settings:
Check the security settings within their email inbox platform.
Adjust any settings that may be overly restrictive, particularly those involving IP checks for deliveries from addresses with the same domain.
Safelist Mandrill Delivery IP Addresses:
Ensure the Mandrill delivery IP address range is safelisted or allowed in their email inbox platform. The IP ranges are:
205.201.128.0/20
198.2.128.0/18
148.105.0.0/16
For more information, visit Mailchimp's IP addresses.
These steps may require the assistance of their IT department. This information should be sent to their appropriate IT contact.
Need Further Assistance?
If you need any further assistance, please feel free to reach out by using the chat feature of the Optify Platform!