Avoiding spam filters

You want most of your outbound messages to be delivered successfully, so there are a few tips to help this:

SPF

If you have an SPF record on your domain and it is hosting your onCourse service, you’ll want to add our SPF record as well. Without this, lots of your email will be dropped.

include:_spf.oncourse.cc

Content

Write emails which contain substantial content and not just a link. Spam filters analyse the words in your message for common phrases.

Reputation

Use a third party service like Mailchimp to send your bulk marketing or newsletter emails and keep onCourse’s messaging system for procedural emails or very targeted marketing campaigns. Mail servers classify the source of email with a reputation score and you don’t want to damage yours unnecessarily.