Bug: imapd stopped working, dbmail-2.2.6-rc1

# dbmail-imapd -V
This is DBMail version 2.2.6-rc1

Today there was the problem that imapd stopped working. 
The daemon was still running, and a TCP connect was 
successful, but no more greeting message or other 
reaction. All I could find was this:

Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Message:[serverchild] serverchild.c,PerformChildTask(+347):
incoming connection from [127.0.0.1] by pid [3228]
Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Message:[serverchild] serverchild.c,PerformChildTask(+347):
incoming connection from [82.218.22.68] by pid [3228]
Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Message:[serverchild] serverchild.c,PerformChildTask(+347):
incoming connection from [212.69.162.199] by pid [3228]
Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Message:[imapsession]
dbmail-imapsession.c,dbmail_imap_session_handle_auth(+1587):
user (id:1106, name beespiderbee.com) tries login
Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Message:[imapsession]
dbmail-imapsession.c,dbmail_imap_session_handle_auth(+1608):
user (id 1106, name beespiderbee.com) login accepted
Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Error:[imapsession]
dbmail-imapsession.c,dbmail_imap_session_printf(+1473):
write to client socket failed
Oct 16 12:55:37 mailsrv1.zmi.at dbmail/imap4d[3228]:
Message:[serverchild] serverchild.c,PerformChildTask(+347):
incoming connection from [127.0.0.1] by pid [3228]

Connections from 127.0.0.1 are IMAPs from stunnel. I had
to manually kill and restart imapd, and everything worked
again.
Is this a generally known problem of -rc1? I didn't update 
recently because everything worked, so I'd like to know if 
an update would resolve this.

mfg zmi
-- 
// Michael Monnerie, Ing.BSc    -----      http://it-management.at
// Tel: 0676/846 914 666                     
.network.your.ideas.
// PGP Key:         "curl -s http://zmi.at/zmi.asc | gpg
--import"
// Fingerprint: EA39 8918 EDFF 0A68 ACFB  11B7 BA2D 060F
1C6F E6B0
// Keyserver: www.keyserver.net                   Key-ID:
1C6FE6B0

_______________________________________________
DBmail mailing list
DBmaildbmail.org
htt
ps://mailman.fastxs.nl/mailman/listinfo/dbmail