Hi, I'm seeing the following postscreen rejection:
PREGREET 28 after 0.1 from [72.35.20.197]:20586: HELO ics.igloosoftware.com\r\n addr 72.35.20.197 listed by domain list.dnswl.org as 127.0.10.1 NOQUEUE: reject: RCPT from [72.35.20.197]:20586: 550 5.5.1 Protocol error; from=<27612720=optionsnotify=redacted....@ics.igloosoftware.com>, to=<optionsnot...@redacted.com>, proto=SMTP, helo=<ics.igloosoftware.com> Clearly the sending server is not talking the SMTP protocol correctly, but would someone mind explaining the reason why please? Thanks, Andy
