We are currently investigating connectivity issues on our homiemail-sub4 mail cluster. This is affecting POP3, IMAP, and SMTP connections. Our team is hard at work looking into this, and we will post more information as we have it. Thank you very much for your patience and understanding!
Early this morning, sometime around 8:30am, we started receiving reports of performance degradation on our homiemail-sub4 email cluster. This degradation was primarily caused by an extremely distributed DoS attack.
Our mitigation service kicked in and started blocking various traffic; the traffic block was mitigated to make sure that valid traffic went through around 9am. The attack continued, and is still ongoing at this moment, and at 12pm our provider decided to turned off our port for about 30-90 seconds.
Our team is currently blocking part of the attack right now, in attempt to help resolve the long standing issue. Unfortunately, due to the scale of this attack, this is a long and ongoing process.
Update 2:00pm PDT: We are happy to announce that this matter is fully resolved. Thank you, once more, for your patience while we worked to bring this issue to a full resolution. If you are still experiencing problems connecting to email (or any other DreamHost service), it is not likely related to this, so please do not hesitate to contact support via your DreamHost panel under Support / Contact Support, here.