Hello,
Lately we have been getting some of our sent emails bounced and the messages that we get back are the following:
SMTP error from remote mail server after end of data:
host barracuda2.thinkorswim.com [10.10.205.200]:
554 Service unavailable; Client host [mailgw1.thinkorswim.com] blocked using Barracuda Reputation;
http://bbl.barracudacentral.com/q.cgi?ip=75.126.124.166
Any help on what can be going on and how can we avoid this in the future would be greatly appreciated.
CJ Mendes
www.tradingoptionsforincome.com