Additional security settings

Our Email Service and Security

Echo for Email has been designed to get you setup and sending messages quickly and easily. When you add a user, by default any email message sent from their email address is accepted by Echo for Email.
Security is important to Esendex, so once satisfied you are able to send messages we recommend you configure some additional security settings. The additional security settings will only allow authorised email addresses with an authorised IP to send an email from your account. Any email that Echo for Email receives coming from an unauthorised IP will be rejected.

For Echo for Email to validate the incoming email IP address, you need to either:

  1. Add your mail server IP address(es) to the whitelist
  2. Create an SPF record for your email domain

Add your mail server IP address(es) to the whitelist

  • Go to Settings in Echo for Email and select Security
  • Select the second option “Only accept emails validated by SPF records OR from these IP addresses”
  • In the field below, type in all IP addresses you would like to enable to send messages through your account.

Create an SPF record for your email domain

If you have a large number of email servers, add email servers regularly or use a hosted email service then creating an SPF record for your email domain may work better for you.

An SPF record is used to show other mail servers, which server(s) or IP address(es) are being used to send an email for a domain. These other mail servers (including the Echo for Email servers) are then able to reject emails that are sent from other locations. When Echo for Email receives your email, it will look for an SPF record on your email domain’s DNS and then any email that reaches us which is from an IP not on your SPF record will be rejected.

There are various options for what your SPF record can be and therefore we recommend that you contact your IT department, or hosting provider to create the SPF record for your email domain.

Once you have added your SPF record to your DNS you will need to enable the advanced security options:

  • Go to Settings in Echo for Email and select Security
  • Select the second option “Only accept emails validated by SPF records OR from these IP addresses”
  • You don’t need to enter anything in the text field below



Please click on one of the following links below for further information on setting up an SPF Record for: