Do you have the same problem "SUDDEN SPAM INFLUX" ? If there is a problem for you, when you receive your mails with 5 hours of latency, answer must be YES. There is a BIG problem for me; Because I have experienced 5 cuts (at least 5 hours per each one) in a moth. I have made tickets, but still there is no solution. Support team solves problem temporarily, not permanently. And temporary solution is not a solution for me. They are not doing more than clearing "spam mails".
If you have similar(delay) problems , pls write up ...