I have my own Exchange Server 2013 (SP1). I am able to receive emails ok but sending emails is not reliable. Emails sent to gmail or seznam.cz (email provider in Czech Republic) is ok.
The problem is sending emails to outlook.com. I guess it is somehow discarded by spam filter but I don't know why. The delivery report says
The message was successfully handed off to a different email system. This is as far as we can track it. but email is not delivered and nothing returns back.
This I have already done:
- set MX record for my domain (
- set A recored (
- set reverse IP record (
- set TXT record
v=spf1 mx a -all
- removed internal hostnames of outbound emails (link)
- set FQDN for send connector (
- set FQDN for FrontendTransport receive connectors (
The mail server is not listed in any blacklist in http://mxtoolbox.com/blacklists.aspx.
Is there anything else I should do? I really don't know where to start looking right now.