On Thursday 18 November 2010 13:55:14 Noel Jones wrote: > On 11/18/2010 3:12 AM, J. Roeleveld wrote: > > Hi All, > > > > I've been having issues where emails are being rejected by Cyrus because > > the "From" address contains an underscore in the domain name. > > ... > > > PS. I have contacted the domain admins where these are coming from, but > > I'm not convinced the user is actually using their smtp-server for > > outbound emails. > > Seems like contacting a Cyrus list is a better idea.
I don't agree as Cyrus is actually behaving correctly. Underscores are not allowed in domainnames/hostnames. The bounces actually get blocked by my ISP because they don't accept it. The originating domain is working on a solution on their end, eg. removing the underscore and replacing it themselves, but I wanted to implement the same on my end. -- Joost