virus/spam attacks from One World Hosting (Alabanza) servers?
I've been reselling One World Hosting services for several years now with almost no serious problems. But lately I've had one ISP (MidMaine Hosting in Bangor Maine) block all email sent from my client's OWH account. They claim the servers -- apparently Alabanza -- are the source of many virus and spam attacks and refuse to unblock the IP addresses.
Has anyone heard of this problem? Are there any solutions? OWH has contacted the ISP's tech folks, without luck.