Moving from Yahoo SBS to Microsoft Exchange 2010

Dear All,

I have an issue while moving from yahoo hosted mail services. 

We have mail domain named abx.com hosted with yahoo and we planned to move from yahoo to locally installed exchange 2010 server in our premises which has internal name as mail.abx.com and externally mail01.abx.com. I want to enable OUTLOOK ANYWHERE .

A Record mail.abx.comyahoo_ip- yahoo
A Record mail2.abx.comyahoo_ip- yahoo
A Recordmail01.abx.com21.11.29.43 - abx.com
A Recordabx.comYahoo! IP Address- yahoo.com
CNAME Record*.abx.comYahoo! Hostname- yahoo.com
CNAME Recordautodiscover.abx.commail01.abx.com- abx.com 
CNAME Recordmail.abx.comYahoo! Hostname 
CNAME Recordmail2.abx.commx1.biz.mail.yahoo.com 
CNAME Recordpopmail.abx.compop.bizmail.yahoo.com 

CNAME exist as autodiscover.abx.com

Presently we are with yahoo mail services and when we are trying to move i found few issues popping up.

1) Am using self signed certificate with name mail for now though my mail server internal name is mail.abx.com and external name is mail01.abx.com. Due to this Outlook Anywhere is not working and getting an error saying invalid certificate match. I have self service certificate assigned for POP/IMAP/SMTP & Web access which is working fine. How do i resolve certificate that mail01.abx.com means it is pointed to local mail server - 21.11.29.43(mail.abx.com).

\Windows\system32>Get-ExchangeCertificate |fl

ules        : {System.Security.AccessControl.CryptoKeyAccessRule, System.Security.AccessControl.CryptoKeyAccessR
              ule}
cateDomains : {mail01.abx.com, mail.abx.com, autodiscover.abx.com}
ateKey      : True
igned       : True
            : C=NG, S=Laos, L=Laos, O=abx, OU="OU=abx,DC=abx,DC=com", CN=mail01.abx.com
r           : 10/30/2013 10:08:35 PM
re          : 10/30/2012 9:48:35 PM
eySize      : 2048
ype         : None
umber       : 06594B28C7DAE48E4E45169EF1145AED
s           : None
            : Valid
            : C=NG, S=Laos, L=Laos, O=abx, OU="OU=abx,DC=abx,DC=com", CN=mail01.abx.com
int         : 6501C2262C84B3E5FAB74CE2B2E1AF05E3718339

ules        : {System.Security.AccessControl.CryptoKeyAccessRule, System.Security.AccessControl.CryptoKeyAccessR
              ule}
cateDomains : {*.abx.com}
ateKey      : True
igned       : True
            : C=NG, S=Laos, L=Laos, O=abx Nigeria Limited, OU="OU=abx,dc=abx,dc=com", CN=*.abx.com
r           : 10/28/2013 9:37:09 PM
re          : 10/28/2012 9:17:09 PM
eySize      : 2048
ype         : None
umber       : 26B799A4ACAB33994400967CC49E68AB
s           : None
            : Valid
            : C=NG, S=Laos, L=Laos, O=abx laos Limited, OU="OU=abx,dc=abx,dc=com", CN=*.abx.com
int         : D3040A2B880556D60F21BE6544D6CEF1BAB0CFBB

ules        : {System.Security.AccessControl.CryptoKeyAccessRule, System.Security.AccessControl.CryptoKeyAccessR
              ule, System.Security.AccessControl.CryptoKeyAccessRule}
cateDomains : {MAIL, MAIL.abx.com}
ateKey      : True
igned       : True
            : CN=MAIL
r           : 10/28/2017 3:52:15 PM
re          : 10/28/2012 3:52:15 PM
eySize      : 2048
ype         : None
umber       : 2DDC6494408D729D43F5C432E4F16CA6
s           : IMAP, POP, IIS, SMTP
            : Valid
            : CN=MAIL
int         : 329DEA4D1D65FF9E8B117DB25A1AD35245EC987C

ules        : {System.Security.AccessControl.CryptoKeyAccessRule, System.Security.AccessControl.CryptoKeyAccessR
              ule, System.Security.AccessControl.CryptoKeyAccessRule}
cateDomains : {WMSvc-MAIL}
ateKey      : True
igned       : True
            : CN=WMSvc-MAIL
r           : 8/16/2021 12:02:42 AM
re          : 8/19/2011 12:02:42 AM
eySize      : 2048
ype         : Registry
umber       : 547B7AAA40BF098D45E319549AF875D0
s           : None
            : Valid
            : CN=WMSvc-MAIL
int         : 4ACE915BC5FEDDFF1E7CB5F3951787AAB946F58A

When i tried connecting remotely using public ip address https://21.11.29.43/rpc/rpcproxy.dll

404 - File or directory not found.
The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

when i tried loging through https://autodiscover.abx.com/autodiscover/autodiscover.xml

i am getting following error after authentication.

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
<Response>
<Error Time="10:19:03.6750224" Id="2053059689">
<ErrorCode>600</ErrorCode>
<Message>Invalid Request</Message>
<DebugData/>
</Error>
</Response>
</Autodiscover>

How do i resolve this issue? Please appreciate the help.

---

Regards, Ganesh, MCTS, MCP, ITILV2