I am using barracudacentral RBL on all of my servers, but on this particular server this started few days back.
Users using Outlook or other Email clients are getting this message:
Any idea why RBL is being applied to outgoing connections, and how to rectify it.
Users using Outlook or other Email clients are getting this message:
And because of this these users can not send any email.Server responded: 550
http://www.barracudanetworks.com/reputation/?pr=1&ip=xyz.abc.asd.iou
Any idea why RBL is being applied to outgoing connections, and how to rectify it.