use IMAPSIEVE to update database with last_read date

[KT Walrus]

Just noticed the Dovecot support IMAPSIEVE extension…

Could I use this extension to update an external database with the date that the user last read the message?

My app sends certain “notification” messages to the user’s dovecot mail address. The user reads the messages in their dovecot mailboxes only using IMAP. I want to update my app’s database to record this read time for all “notification” messages sent by the app.

Seems to me I could write a short sieve script to send a “notify” message to an app specific address that my app “watches” and updates the appropriate database record with the last_read time.

Is this workable for production deploy?

Or, is there a better way for a sender to be notified when the recipient actually reads the message? The sender will be my app and the recipient is a dovecot mailbox accessed by IMAP.

Kevin