Email Spam Guidelines
Email campaigns can only be successful if the intended recipients receive the email. There are several best practices that can help you ensure that email is not marked as spam. For more information, see the following:
You can also improve your domain's reputation as a non-spammer by preventing spam on both incoming and outgoing mail. Some sources of spam messages going out are a result of spam messages coming in. Therefore, preventing bad email from coming in will also prevent you from sending out spam.
Consider the case capture address that you have set up. If you have a dedicated custom case capture address, you can perform some spam filtering using an external spam filter service. Bots can get case capture email addresses and send spam messages to those email addresses.
These spam messages can result in your domain being added to a blocklist by major mail providers because of the volume of email being sent out. For more information about case capture email addresses, see Using Email Case Capture.
For example, set up a branded case capture address such as support@cases.example.com. Modify your MX DNS record for cases.example.com to redirect all email traffic for this domain to your spam filter service provider. Filtered, clean traffic is sent to your SMTP server as configured on the spam filter side. Your server then redirects the branded capture case email address to the NetSuite case capture address.
Another best practice that can help prevent receiving spam is to keep your group email addresses private as much as possible (for example, the email addresses you use for email case capture and case profiles). Minimize the number of attached users, and include only the users that should be involved in the communication. Leakage of group email addresses to a spammer can result in opening a spam distribution channel.
For a spam distribution channel attack, NetSuite has protection for the reply-to-case scenario only. For more information, see Customer Responses to Cases. Other communications (transactions and messages) cannot be protected the same way, so circulating email addresses privately is essential.
Email Sent from NetSuite
Email sent from NetSuite are different, depending on where they are sent from, due to the templates and mechanism of sending. For example, standard email footers and the sending domain are specified in a different way on a campaign email vs. a saved search email alert. Consequently, email sent from different sources might behave differently against a specified spam filter.
To optimize email delivery, ensure DMARC compliance by using DKIM keys for every email domain that your organization uses.