We are currently waiting the delisting interval for mail1.ownwebnow.com (shared virtual hosting email) off SpamCop XBL (CBL). The delist was put in place around 10 AM EST and will be removed within the hour, so by 11 AM EST there should be no issues.

This issue only affected certain virtual hosting customers, as always, we advise all our customers to use local SMTP servers provided by their ISPs.