diff --git a/candidates.md b/candidates.md
index 4645c75..7de16bf 100644
--- a/candidates.md
+++ b/candidates.md
@@ -23,6 +23,9 @@ Components to investigate and evaluate for fit and purpose.
 ## Email
 * [poste.io](https://poste.io/)
   > Full stack mailserver solution with TLS support. POP3, SMTP, IMAP, RSPAMD, Clamav, Roundcube, SPF & DKIM with simple installation and web administration.
+* [mail-crypt-plugin](https://doc.dovecot.org/configuration_manual/mail_crypt_plugin/)
+  > The Mail crypt plugin is used to secure email messages stored in a Dovecot system. Messages are encrypted before written to storage and decrypted after reading. Both operations are transparent to the user.
+  > There can be a single encryption key for the whole system or each user can have a key of their own. The used cryptographical methods are widely used standards and keys are stored in portable formats, when possible.
 
 ## Management
 * [Nebula manager](https://nebula-orchestrator.github.io/) (not related to Slack's Nebula)