[qmailtoaster] Cannot sign message due to invalid message syntax

[Jeff Koch]

Hi Eric/List

We're seeing a number of these errors in the smtp log. Users are also 
reporting seeing some of these responses. Is there a recommended fix?

554 qmail-dk: Cannot sign message due to invalid message syntax (#5.3.0)

I came across this suggestion after Googling the error:

Disable domain keys:

rm -f /var/qmail/bin/qmail-queue
ln -s /var/qmail/bin/qmail-queue.orig /var/qmail/bin/qmail-queue


Regards, Jeff Koch