proofpoint blacklisted mailservices again


Mail services




The use of more compromised credentials over the last few days has once again resulted in the central email service (mailservices) being blacklisted by ProofPoint. As a result, organizations/companies that subscribe to the ProofPoint blacklisting service are once again rejecting email from mailservices accounts. Connect accounts are not affected by the current ProofPoint blacklist. IST continues to disable compromised accounts as they are detected. When email is rejected, users should receive an email notice indicating that their email has not been delivered.

Start time

Wednesday, September 3, 2014 8:00 AM

End time

Monday, November 30, -0001 12:00 AM


some e-mail being rejected at remote sites

Notice submitted

Wednesday, September 3, 2014 10:26 AM