New config file format is supported since sendxmpp version 1.24. Issue #9 – passwords with spaces not supported in .sendxmpprc. has been fixed.

Example for Google Talk servers:

$ cat ~/.sendxmpprc
username: lubomir.host
jserver: talk.google.com
password: my-"secure-pass _word with sp@ce!
component: gmail.com

Please, don’t try the password above, I have changed them. 🙂