Mail server set up errors

Sending mail from IP-addresses

If approval is required for our mail server (otherwise known as an SPF record) then the following IP address can be used:

46.36.211.197

Mail server set up

Note that some mail servers have limits to the number of emails that can be sent at the same time or within a certain time interval.

This would primarily led to issues when performing mass updates.

Error messages

Client was not authenticated

If you receive the following error message then you will need to contact your administrator for Office 365.

“The SMTP server requires a secure connection or the client was not authenticated. The server response was 5.7.57. Client was not authenticated to send anonymous mail during mail from…”

Microsoft describes the requred set ups here:

Set up application to send e-mail

Uniconta does not provide Office 365 set up support nor for other e-mail programs. 

Your daily relays limit

Upon testing with individual mails, the following ‘Exception’ notice may appear. This means that a maximum of 250 e-mails can be sent within the buffer size. Remember that one e-mail with 4 recipients counts as 4 e-mails.

Your e-mail provider will be able to help you with this.

The server response was: 5.7.1 unable to relay

If you receive the error message: “Mailbox unavailable. The server response was 5.7.1. Unable to relay”

You will need to check your “Default SMTP Virtual Server” as follows:

Use IIS7 to deploy your web site, Open IIS6 Manager to configure the SMTP server.

Configure the SMTP server as follows:

1. Open IIS6 Manager using the Control Panel –> Administrative Tools.
2. Open the SMTP Virtual Server properties.
3. Under the ‘General’ tab, set the IP address to the Web server instead of ‘All Unassigned’.
4. Under the ‘Access’ tab, click on the ‘Relay’ button. This will open the ‘Relay Restrictions’ dialog.
5. In the ‘relay computers’ list, add the loopback IP address (e.g. 127.0.0.1) and the IP address of the Web server, so that e-mails can pass/relay through the SMTP server.