Your company is amazingly lucky if it only gets a blacklist incident once a year, and if that incident is easily resolved. The internet seems to have decided t

Your company is amazingly lucky if it only gets a blacklist incident once a year, and if that incident is easily resolved. The internet seems to have decided that if your mail doesn't come from one of the major commercial mail brokers, it's as good as spam. I ran several private mail servers for several years before giving up. I'm generally suspicious of moving to cloud/services, but outgoing email is the one thing that I can safely say 99% of companies would be better off moving to a service.