SMTP Relay is unable to send mails to inside domain

Harikrishnan K 1 Reputation point
2022-08-09T09:21:11.05+00:00

Dear Team,
Emails are triggered from our HP Process Automation 7.5. The SMTP server configured in the application as localhost. We have SMTP Relay configured under Windows Server 2012 R2 under IIS. Mails triggered by the application is able to send mails to outside domains. We are using domain as [mycompanyname.in]. The mails sent to inside our domain is not delivering. ie, the SMTP relay server is able to send the mails to email ids such as user3465@Stuff .com, but it is not able to deliver the message to email ids such as user3465@mycompanyname.in.

Any issue with .com & .in domains in SMTP relay server?

My Server is MS Server 2012 R2 patched uptodate.

Please help us resolve the issue.

Internet Information Services
Windows Server 2012
Windows Server 2012
A Microsoft server operating system that supports enterprise-level management, data storage, applications, and communications.
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  1. Limitless Technology 39,381 Reputation points
    2022-08-09T14:12:25.837+00:00

    Hi,

    Please check the following:

    Click Start, point to Programs, click Administrative Tools, and then click Internet Services Manager.

    Expand the tree under the server name, and then expand the Default SMTP Virtual Server. By default, you should have a Local (Default) domain with the fully qualified domain name of the server.

    Right-click the Domains icon, click New, and then click Domain.

    Click Remote, click Next, and then type the domain name in the Name box. Click Finish.

    In the properties for the domain that you just created, click to select the Allow the Incoming Mail to be Relayed to this Domain check box.

    If this is being set up for a internal domain, you should specify the server that receives e-mail for the domain name by the IP address in the Route domain dialog box.

    Click the forward all e-mail to smart host option, and then type the IP address of the server that is responsible for e-mail for that domain in square brackets. For example: [123.123.123.123]

    Open the properties of the Default SMTP Virtual Server.

    On the Access tab, click Relay.

    Click Only the list below, click Add, and then add the hosts that need to use this SMTP host to send e-mail. (Your IIS server, and your Domino server)

    I hope this answers your question.

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