Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain ——- by ———-.[0000000].The error that the other server returned was:554 5.7.1 Service unavailable; Client host [209.85.223.171] blocked using rbl.abuse.ro; your IP seems infected and sending spam; please go away
Mulțumesc Google.
p.s. IP-ul, pentru curioși, e din Mountain View.
UPDATE: se pare că e o problemă globală și că s-ar fi rezolvat între timp.