Hello,
well as u can see here: https://community.office365.com/en-us/f/158/t/415263?pi14985=2
I got a problem with the mailflow.
UserA@domainA.com was moved vom on premise to exchange online.
UserB@domainA.com is still on premise.
UserA can send mails. And can get mails. From external or on premise.
UserB can send mails. Gets mails from on premise users. Not from external. They get an error. Also can't get an email from UserA.
Ok, now we did some configurations in office 365 and the local exchange.
Now I'm getting this error:
Diagnostic information for administrators:
Generating server: AM2PR09MB0003.eurprd09.prod.outlook.com
Receiving server: AM2PR09MB0003.eurprd09.prod.outlook.com
mouse@roschmann.us
11/5/2015 4:57:11 PM - Server at AM2PR09MB0003.eurprd09.prod.outlook.com returned '550 4.4.7 QUEUE.Expired; message expired'
11/5/2015 4:49:00 PM - Server at emea01-internal.map.protection.outlook.com (10.47.216.27) returned '441 4.4.1 Error encountered while communicating with primary target IP address: "Failed to connect. Winsock error code: 10061, Win32 error code: 10061."
Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint attempted was xxx.xxx.xxx.xxx:1701'
Original message headers:
So I think its a problem with our local config. Well: The exchange server is behind a firewall. Are there any port forwardings needed? I thought exchange online and on premise are talking over SMTP?
Thanks!