spamd is a daemonized version of spamassassin.

spamd (obspamd) is also a fake sendmail(8)-like daemon which rejects false mail.

When using the SpamAssassin module to edit the blacklist and whitelist data, a HUP signal is sent to spamassassin-related processes, which completely kills the OpenBSD spamd process.

If you are not using the daemonized version of spamassassin with amavisd, a workaround is to remove spamd from the processes parameter in the Webmin SpamAssassin module configuration file.

# vi /usr/local/etc/webmin/spam/config
------------------------------ cut here ------------------------------
processes=amavisd
------------------------------ cut here ------------------------------