- The email had been deleted from your quarantine;
- The email had been released before;
- You have clicked the release link via off campus network, please refer to the FAQ https://faq.icto.um.edu.mo/why-cant-i-access-the-links-in-user-digest-via-internet/.
- The email is moved to [Junk Email] folder after inspected by ESET Endpoint Security as Second-level Protection, you may try to find it in your [Junk Email] folder.
It may due to: