Build a testing email system in SharePoint 2013 environment

In almost SharePoint workflow deployments, notification via email is one of the most essential requirements. This requires a setup of email system in your internal infrastructure to test notification and email functionality. One of the burdens is that the setup requires additional hardware resources to build a separate email system because the IT team doesn’t allow SharePoint farm to be involved in the production email server farm. Next, the deployment team may not have someone who is familiar with any messaging technologies, even Microsoft Exchange to help you. This also happens to independent SharePoint freelancer who doesn’t know about email protocol or so on. At a result, effort spent for studying email principles may impact on progress of your project.

This article saves you time by providing a quick guide to building an internal email system in SharePoint 2013 and steps that need to be configured on Outlook 2013. It splits into three main parts as follows:

  • Part 1 – Setting up and configuring hMailServer.
  • Part 2 – Configuring Microsoft Outlook 2013
  • Part 3 – Configuring email setting on Microsoft SharePoint 2013 and testing.

Setting up and configuring hMailServer

There are many messaging technologies you can integrate with Windows Server Active Directory (AD) system, i.e. Microsoft Exchange commonly. To build an evaluation production, you would have to have at least 6 GB ram. It’s going to be more complicated on modification of AD schema. Going with Google mail is an option but not flexible since your can’t administer Google mail system. Finding a good product for a quick setup on an existing Windows environment is difficult. Fortunately, hMailServer developed by Martin Knafve saves your time very much. It’s a free e-mail server for Microsoft Windows and does support the common email protocol (IMAP, SMTP and POP3). See hMailServer functionality here.

The very first step is to download and install hMailServer on SharePoint server. You can deploy hMailServer on a separate server or on domain controller server.

On the Welcome to the hMailServer Setup Wizard page, click Next. On the License Agreement page, read the software license agreement and select I accept the agreement. Click Next. On the Select Destination Location page, select folder to store hMailServer source. Click Next.

On the Select Components page, select Full installation and stick on Server at least.

On the Select database server type page, select Use built-in database engine (Microsoft SQL Compact). The benefit of using this option is the small memory and it doesn’t require any external software to run on your server. It’s however limited to 4 GB. For testing purpose, this is good enough. One consideration is that Microsoft SQL Server Compact Edition may not be used with commercial hosting services. The latter option is much more flexible if you want to scale out the email system to handle thousands of mailboxes.

On the Select Start Menu Folder page, type the folder name of your hMailServer that will display on Start Menu. On the hMailServer Security page, enter administration password. It will be asked every time you want to connect to hMailServer administrator application.

On the Ready to Install page, review the destination location and Start Menu folder and click Install. Wait a few minutes until the installation completes. On the final page, select Run hMailServer Administrator to start configuring hMailServer.

On the Connect window, select host and appropriate username, click Connect. A prompts opens asking you the credential to login to hMailServer Administrator.

You will see the Welcome page with the Add domain button. Click it to add your AD to be integrated with hMailServer. Make sure you enter FQDN (full qualified domain name). In this case, mine is avalys02.local. hMailServer will automatically recognize your domain in case the server where hMailServer is installed has already joined to the domain controller.

To create email for an AD account, right click on your domain and select Add AD account.

On the Active Directory accounts windows, select the newly added domain under Domain. hMailServer will automatically query in AD repository and then list of AD accounts. Select an account then click OK.

Expand the Account node to edit account information, i.e. address. Click Active Directory tab to check if the account is added from your AD.

Under Settings node, depending on email protocol you are going to use, make sure at least two protocols SMTP and POP3/IMAP are running on Protocol node.

Under Anti-spam node, click Logging setting and select Enabled and log types Application, SMTP, POP3, IMAP, TCP/IP to track log if you have issues with sending/receiving process.

Under Advanced node, right click on IP Ranges node in order to create a new range that accepts incoming/outgoing package from your computer. Type the name of the new range; it may be LAN (Local Area Network). Enter priority value of the range. It is from 0 to 1000. “0” means the range is very less prioritized and “1000” means the priority of the range is highest. In the list of defined ranges, hMailServer will check to use the IP range with higher priority value. Because hMailServer has two ranges with priority value 10 by default, so the priority value of the new range need to be greater than 10.

Before entering IP range, check your SharePoint server and client computer (where Outlook is configured to test). If your server is configured a static IP, it needs to be included in the range. If not, the easiest way is to start with (Lower IP) and end with (Upper IP). In my case, the IP address of the SharePoint server is so I just need to include it, i.e. – or –

Under Allow connections, select STMP, POP3/IMAP. If you don’t want to run into any problem in protection, just uncheck Anti-spam, Anti-virus option.

Next, select all options under Allow deliveries from. Under Require STMP authentication, just skip all to avoid STMP authentication issues. Click Save to complete configuration

Configuring Microsoft Outlook 2013

After configuring hMailServer, you now need to setup Outlook client to test email functionality. The article uses Microsoft Outlook 2013 but the steps needed for earlier version are the same. If you haven’t had any accounts configured in Outlook, it opens to ask you to add a new account when opened at the first time. Unless, go to File > Info > Add Account.

On the Auto Account Setup page, select Manual setup or additional server types. On the Choose Service page, select POP or IMAP because you are going to use POP for the testing.

On the POP and IMAP Account Settings page, enter information of the account, server mail information. Select POP3 and enter the computer name of the server hMailServer is installed. In my case, SharePoint and hMailServer are hosted on the same server. I just simply need to type the FQDN of this server. Under Logon Information, enter AD password of the account.

Click Test Account Settings to begin testing email. When trying to login to incoming server to check the account, Outlook asks your account credential. On the Internet E-mail windows, type email address and password then click OK.

If Outlook results any errors related to the server response, you may need to check if Outlook can’t connect to hMailServer locally. In this case, the workaround is to edit hosts file in C:WindowsSystem32driversetc folder. Just simply adding localhost entry app03.availys02.local

Click Next then Outlook will ask to check the account again. If you see the error message “503 STMP Authentication required”, click More Settings. On the Internet –Email Settings windows, select Outgoing Server tab and check My outgoing server (SMTP) requires authentication and Use same settings as my incoming mail server. On the Advanced tab, make sure you use the right port for hMailServer

  • Incoming server (POP): 110
  • Outgoing server (SMTP): 25

You can add more accounts to Outlook and test by sending direct message to any of them.

Configuring email setting in SharePoint 2013

There are countless articles covering steps to configuring outgoing email in SharePoint 2013. Open Central Administration > System Settings > Configure outgoing e-mail settings. Type the STMP server and email address.

Create a new email with a meaningful name, i.e. sharepoint@availys02.local or intranet@availys02.local because this email is used as the name of sender of all emails that are distributed to recipients.

The additional step to complete SharePoint outgoing email configuration is to configure the SharePoint sender address as a catch-all address in hMailServer. Click domain and navigate to Advanced tab then type the sender address. In my case, it’s sharepoint@availys02.local

For some reasons you don’t see email address in user information page. You need to run AD Import to synchronize email attribute to SharePoint so it can recognize the existence of email address. AD Import is only available in SharePoint 2013. If you are using SharePoint 2010, you must go with full synchronization in User Profile Synchronize service.

Finally, use one of the following ways below to test email functionality:


As said earlier in this article, there are many options you can chose for your email testing. hMailServer is a good optiong  providing good enough features to test notification in SharePoint environment. At the end of the day, hMailServer saves hardware resources and your time.


  1. April 10, 2014 — 10:20 am

    Hi, excellent post. On top of ‘the configuration you describe, do I still also need to activate and configure the SMTP Service feature on Windows server, as prescribed in those countless articles on configuring email for SharePoint’? I’m asking because if I do that, the SMTP service cannot be started if conficgured to listen on poert 25 (the default port for hMailServer). That makes me think I might not need it. Your help is greatly appreciated

    • April 10, 2014 — 12:32 pm

      Hi rvanraamsdonk

      You don’t have to configure built-in SMTP feature in Windows Server.hMailServer after configured can be an SMTP server.


  2. mina
    April 14, 2014 — 12:06 pm

    i did all things above, but it did not send email .when i set alert to send me an email it does not work and when i create a workflow .never send me an email please help me for god sake :(((((

    • April 14, 2014 — 4:52 pm

      Hi Mina,

      Can you please show me log history? I would be happy to help you. Make sure your server doesn’t have any other service listening port 25. Outgoing email must be entered first.

      My Skype thuansoldier and email


  3. April 15, 2014 — 10:54 am

    Thanks a lot. Your article is fantastic!

  4. April 16, 2014 — 4:22 pm

    Thank Duy. Glad you like it. Hope this article helps people.

  5. July 1, 2014 — 6:01 pm

    Hi Thuan,

    Nice Blog as always, Yes i have configured H MAIL Server with SharePoint 2010 in a Test Virtual environment & found it works well.
    But what if i want to configure or see my mailbox in SharePoint. I think it dose not provide us any link like OWA Exchange.
    What if i don’t have any Exchange Server in place & its hosted somewhere else like IMAP.
    Then can i able to see my mailbox in Mailbox webpart (Outlook Web App, Webpart) in SharePoint Just like we see as OWA?


  6. Sisko
    October 4, 2015 — 8:22 pm

    Thanks for guide. Works perfectly

  7. Tu Nguyen
    March 24, 2017 — 4:14 pm

    right the help I need. Thank you

    • Thuan Soldier
      March 28, 2017 — 11:25 am

      Glad it’s helpful! Thank you very much.

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