18.3 Relay SMTP server
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## 18.3 Relay SMTP server

WinRoute provides a function which enables notification to users or/and administrators by email alerts. These alert messages can be sent upon various events, for example when a virus is detected (see chapter 13.3 HTTP and FTP scanning), when a Peer-to-Peer network is detected (refer to chapter 17.1 P2P Eliminator), when an alert function is set for certain events (details in chapter 15.1 Viewing and definitions of user accounts) or upon reception of an alert (see chapter 19.4 Alerts).

For this purpose, WinRoute needs an SMTP Relay Server. This server is used for forwarding of infected messages to a specified address.

Note: WinRoute does not provided any built-in SMTP server.

To configure an SMTP server, go to the SMTP server tab in Configuration → Advanced Options.

Figure 18.5. SMTP settings — reports sending

Server

  Name or IP address of the server.

  Note: If available, we recommend you to use an SMTP server within the local network (messages sent by WinRoute are often addressed to local users).

SMTP requires authentication

  Enable this option to require authentication through username and password at the specified SMTP server.

Specify sender email address in “From” header

  In this option you can specify a sender's email address (i.e. the value for the `From` header) for email sent from WinRoute (email or SMS alerts sent to users). Preset `From` header does not apply to messages forwarded during antivirus check (refer to chapter 13.4 Email scanning).

  This item must be preset especially if the SMTP server strictly checks the header (messages without or with an invalid `From` header are considered as spams). The item can also be used for reference in recipient's mail client or for email classification. This is why it is always recommended to specify sender's email address in WinRoute.

Connection test

  Click Test to test functionality of sending of email via the specified SMTP server. WinRoute sends a testing email message to the specified email address.

### Warning

1. If SMTP is specified by a DNS name, it cannot be used until WinRoute resolves a corresponding IP address (by a DNS query). The IP address of specified SMTP server cannot be resolved warning message is displayed in the SMTP Relay tab until the IP address is not found. If the warning is still displayed, this implies that an invalid (non-existent) DNS name is specified or the DNS server does not respond.

   If the warning on the SMTP server tab is still displayed, it means that an invalid DNS name was specified or that an error occurred in the communication (DNS server is not responding). Therefore, we recommend you to specify SMTP server by an IP address if possible.

2. Communication with the SMTP server must not be blocked by any rule, otherwise the Connection to SMTP server is blocked by traffic rules error is reported upon clicking the Apply button.

   For detailed information about traffic rules, refer to chapter 7 Traffic Policy.

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