# Unable to create a Spam Filter - Error 11006 pops up

## **Symptoms**

When adding a new filter (incoming or outgoing) and filling in the mailserver IP the corresponding field - the filter is not created with a similar error message "<span>('\_ERR\_SE\_DESTINATION\_INVALID', 11006); // Your request contains an invalid destination"</span>

## <span>**Cause** </span>

<span>The Spamexperts is not accepting the IP of the mailserver in this field. Same happens when we try to fill in IP in the Spamexperts panel.</span>

## <span>**Resolution**</span>

<span>The mailserver hostname has to be filled in to the mailserver field (for instance, mail.example.com)</span>