Hi

I have installed new Exchange server for my company.. but e-mails are not going out from my domain.. I am getting below error.

MX, RDS, Exchange connectivity analyzer all going good.  but e-mail are not going out.

getting below error. if some body can help...

gmail.com    DnsConnectorDelivery    Retry    2    "Saturday, July 05, 2014 1:31:10 PM"    "[{LRT=7/4/2014 12:09:04 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP address: ""Failed to connect. Winsock error code: 10049, Win32 error code: 10049."" 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 173.194.75.26:25};{FQDN=gmail.com};{IP=173.194.75.26}]"


hotmail.com    DnsConnectorDelivery    Retry    2    "Saturday, July 05, 2014 1:30:53 PM"    "[{LRT=7/5/2014 1:09:40 PM};{LED=441 4.4.1 Error encountered while communicating with primary target IP address: ""Failed to connect. Winsock error code: 10049, Win32 error code: 10049."" 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 65.54.188.72:25};{FQDN=hotmail.com};{IP=65.54.188.72}]"

 

Thanks for reply Brian.

I am getting same error on all the outbound e-mails. none of my e-mails are going out.

On ports -- All outgoing ports are open for the server.

I am able to telnet at port 25 for e-mail servers line gmail, hotmail, yahoo.  but not able to send e-mails.

reply from your host-name (www.c7solutions.com) is given below..

220 plesk56.hostinguk.net

Thanks & Regards,

Raman

Please check the telnet destination mail server for 25 port. If its success, please check the PTR and SPF records. And then try again.

You have an issue with the IP bindings on your network card. Check your IP settings in Control Panel > Networking etc. Make sure you have a valid address/subnet/gateway. Make sure you can ping the destination IP's that Exchange is trying to get to.

If that all looks okay then check the Smarthost you have set in the Send Connector called "Internet Connector". Check that the address is a valid address and that it resolves to an IP address or the name is resolving to a valid address.

Find the below details

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Intel(R) 82574L Gigabit Network Connectio
n
   Physical Address. . . . . . . . . : 5C-F3-FC-29-48-05
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::79:607b:4f30:9789%11(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.2.11(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.2.1
   DHCPv6 IAID . . . . . . . . . . . : 240972796
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-E0-C1-E7-5C-F3-FC-29-48-05

   DNS Servers . . . . . . . . . . . : 192.168.2.10
                                       202.164.51.21
   NetBIOS over Tcpip. . . . . . . . : Enabled

[PS] C:\Windows\system32>Get-SendConnector | FL


AddressSpaces                : {SMTP:*;1}
AuthenticationCredential     :
CloudServicesMailEnabled     : False
Comment                      :
ConnectedDomains             : {}
ConnectionInactivityTimeOut  : 00:10:00
DNSRoutingEnabled            : True
DomainSecureEnabled          : False
Enabled                      : True
ErrorPolicies                : Default
ForceHELO                    : False
Fqdn                         :
FrontendProxyEnabled         : False
HomeMTA                      : Microsoft MTA
HomeMtaServerId              : EX1
Identity                     : Internet Connector
IgnoreSTARTTLS               : False
IsScopedConnector            : False
IsSmtpConnector              : True
MaxMessageSize               : 35 MB (36,700,160 bytes)
Name                         : Internet Connector
Port                         : 25
ProtocolLoggingLevel         : Verbose
RequireOorg                  : False
RequireTLS                   : False
SmartHostAuthMechanism       : None
SmartHosts                   : {}
SmartHostsString             :
SmtpMaxMessagesPerConnection : 20
SourceIPAddress              : 0.0.0.0
SourceRoutingGroup           : Exchange Routing Group (DWBGZMFD01QNBJR)
SourceTransportServers       : {EX1}
TlsAuthLevel                 :
TlsCertificateName           :
TlsDomain                    :
UseExternalDNSServersEnabled : False

And ensure you do not have any antivirus software running that is blocking stuff on port 25 - disable AV and see if it works, and when it does, fix AV software.

Hi,

The error "The requested address is not valid in its context" means an IP issue with your computer. Please check the event log for IP related issues and the ability to run services on port 25. I would uninstall the AV software and see if that fixes it. If it does, then install some AV that does not interfere with the ability to run an email server (as some AV software blocks TCP port 25) and so is not suitable or needs to be have the correct exclusions and rules server for Exchange to work.

Also, remove the DNS entry to your ISP - it is wrong in this context. This is a domain joined machine that uses AD extensively and so needs always to lookup the DNS hosted on the domain controller(s) and nowhere else. If you need to lookup external DNS then either place that on the send connector or on the DNS server as a forwarder.

Thanks Brian.

Its working after removing the Antivirus & Second DNS entry ..

Thanks very much for all your support.

Thanks & Regards,

Raman

• Marked as answer by Raman10181 57 minutes ago
• Unmarked as answer by Raman10181 57 minutes ago