Currently some of our mail servers are blacklisted at Spamhaus. As a result some of the messages sent by our customers are not delivered to the recipient(s). We are currently working on improvements to our mailing system, which would resolve the problems addressed by Spamhaus and once we have completed these modifications, we expect our mail servers to be delisted. As soon as this happens there will be no further problems with outgoing email. We will post a news item once this problem has been resolved.