Chapter 5 : Spam Filtering Problems
Common Things That Trigger Spam Filters
ISPs use spam filters to eliminate incoming messages identified as spam. However, these measures can also block legitimate emails at times. Running a spam check can help narrow down the reasons for genuine emails getting blocked as spam. Check out the following things that can trigger spam filters.
- Words and Phrases – Enticing and attractive terms, phrases, and irregular punctuation and symbols.
- Images – Excessive use of images.
- Links – Use of excessive ‘Click Here’ or other links.
- Sender reputation and email engagement – A low sender reputation means a higher probability of getting emails marked as spam.
- Sending address – Using a free email address like Gmail or Yahoo to send bulk emails.
- Duplicate emails – Copying a sent email and sending it again to several users at once.
How To Prevent Getting Caught In Spam Filters?
If the user takes care of the following aspects that trigger spam filters, then they can avoid having their sent emails being marked as spam:
- Ensure that the email header and content do not have enticing words.
- Do not send large messages or excessive ‘Click Here’ links through emails.
- Check out if the IP address through which the email being sent is dedicated to your domain only or is shared by several senders.
- Choosing a reliable ESP (Email Service Provider) is crucial.
- Be updated with spam filter technology, anti-spam law, and ISP practices.
Quick Links
Common Email Problems And How To Resolve Them
Common SPF Issues
Monitoring Email Flow For Clients
Tenant Migration Issues And Resolution
Spam Filtering Problems
How To Secure And Authenticate Customers’ Emails
Uncommon Email Problems And Solutions
The Importance Of DMARC And DKIM And Ensuring Their Proper Functioning
Is DMARC Reporting Required For MSPs To Have Happy Customers? – Myths About DMARC Debunked