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What to do when the newsletters get blacklisted after sending them out from SuperOffice Mailing?

Aktualisiert am 12. Mai 2026

I use SuperOffice Mailings to send communication to the customers. Many of the mailings are blacklisted and reported as spam. What can I do about it?

There are many possible causes of your messages being blacklisted. Please read some of them below:

  1. The recipient list that you use has a poor quality. We suggest using subscription management to make sure that your sent messages are relevant to your recipients.
     
  2. If you are using the SuperOffice CRM Online platform, please read this FAQ, which explains how to avoid being marked as Spam.
     
  3. If you use SuperOffice Onsite, links created in the newsletters may have a format that refers to customer.exe. The .exe referral is seen as a threat by spam filters. To avoid this, try using a URL rewrite or link shortener to hide 'customer.exe' in the links. If this does not help, please register a support request.
     
  4. It's possible that you experienced some temporary issues, but after resolving them, your domain or IP address may have already lost its good reputation.

    To check if your domain is blacklisted, you can use a free web service like MXToolbox.

 

To prevent your mailings from being blacklisted, please follow the suggestions described in these articles: