On 10/24/2014 03:12 PM, Paul Stead wrote:
Being UK based we get a lot of email from these connections.
I've just done a quick check and we get a lot of (seemingly) legit email
from servers with generic BT PTRs - how wide spread is rejecting email
based upon generic PTR rules?
Considering Zen's size I wouldn't do it unless you want to generate
yourself a huge amount of support tickets.
Assuming you're using Spamhaus for rejects, XBL (included in
zen.spamhaus.org) should catch the dirty btconnect senders.