>> $ ./imaptest user=foo pass=bar host=localhost test=tests >> Error: connect() failed: No route to host > > I can't reproduce this connect() failure. Not in OSX or Linux.
It has something to do with IPv6 or multiple aliases of localhost, for if I comment out this line in client_new() like so it runs fine: // if (++conf.ip_idx == conf.ips_count) FYI my /etc/hosts says: 127.0.0.1 localhost ::1 localhost fe80::1%lo0 localhost Anyway, I was trying to use imaptest to make a reproducible case for you to troubleshoot the "dovecot-uidlist: Duplicate file entry" warnings but with no joy yet. Do you have any hints as to what I should try next?
