I can't send any emails via smtp.vodafone.co.nz at present. I can't even telnet it on port 25.
I've tried from a few servers on various networks I have access to and can't get it from there either.
Ditto smtp.clear.net.nz too (Have they consolidated their mail servers yet? - Maybe they are trying today and thats whats wrong?)
I've been sitting on hold to support for 31 minutes now as their status message doesn't indicate anything.