Missing "Warning! Your mail is not delivered for past ... hours"

[Valentin Laskov]

Hello,

FYI

I installed experimental Kolab server on SSD disk and after troubles 
with Cyrus-imap database files, cyrus-imapd was not running for two days.

As a sendmail user, I was expecting undelivered mail alerts. Sendmail 
sends such messages to the sender every 4 hours by default. But nothing 
like that. Postfix in my Kolab system receives letters from the remote 
MTA and tries to deliver them to cyrus-imapd, which fails. During this 
time, no alerts are sent to the sender.

Or it is a configuration issue?

Regards!
Valentin Laskov

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