Dear,
I have Installed Ex2k10 SP2/Win2k8 R2 in coexist with Ex2k3 SP2. The problem is mails from Ex2k3 to Ex2k10 users don't reach and stay on Ex2k3 queue. Mails from Ex2k10 to Ex2k3 working fine.
Environment:
1- Ex2k3->To Internet: ExBE->Routing Group->Smart Host
2- Ex2k3->To Ex2k10: Two BI directional Routing Groups (Ex2003-Ex2010)
3- Ex2k10 setup: (2xHB/CAS, 2xMB/DAG & ET) Servers with ACE HLB to CAS services
(Ex2k3 & Ex2k10 are in different Segment but Firewall are opened between them)
Notes:
- Still not migrate users to Ex2k10 till solve mail flow issue
- Mails sent to Internet & VS through Ex2k3 is working fine
- ET/HT subscription configured and tested but still not used in production
Troubleshooting steps:
- I have deleted the two routing groups created during installation and create new routing groups using PS commands:
Get-RoutingGroupConnector | Remove-RoutingGroupConnector
New-RoutingGroupConnector -Name “Ex2003-Ex2010" -SourceTransportServers “BE01.abc.com" -TargetTransportServers HT01.abc.com, HT02.abc.com -Cost 100 -Bidirectional $True -PublicFolderReferralsEnabled $true
- Using Telnet to send mails from Ex2k3 to Ex2k10 works fine without any issue
Dears,
Problem solved after Network Team when they disable the PIX Firewall with the SMTP Fixup Protocol:
See below link: