Yes it's my very own MailEnable mail server, SA integrated. I sent the message from home.
2010/9/1 Karsten Bräckelmann <guent...@rudersport.de> > > >> If that was an SMTP server, fix that. It should, however, not be part of >> *your* infrastructure, since it's external. If it is under your control, >> you need to fix your SA internal_networks settings. >> >> But since you mentioned sending a test message yourself, from Outlook -- >> any chance there was no external SMTP involved, and you directly >> submitted from your MUA to MX? >> >>