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Question Are viruses been blocked by the Spam-filter? Answer Viruses, malware and other online threats are often been spread via email. Therefore it is essential that emails are scanned for viruses before they reach users' mailboxes. Spamexperts actively block...

Question Retrieving contact information using API Method (retrieveCustomerRequest), but EmailVerificationStatus is not returned. Answer That means you did not yet start verifying an email address. Please note contact verification is mandatory for GTLDs. Initia...

Question What is incoming email filtering and how does it works? Answer Email filtering separates legitimate email from unsolicited bulk email with the help of advanced algorithms and spam pattern detection methods.  It works by Re-routing the email through fi...

Question How to prevent an email from being filtered? Answer By configuring allow or block list filtering rules for outgoing or incoming filters the emails in the configuration will be accepted or sent without the need for the filter to check it. This is very ...

White labeling lets you deliver our email solution under your own brand, your own webmail URL (for example mail.yourdomain.com instead of mail.op-email.eu) and your own logo in the webmail interface. Before you start You need an active email product in your ...

There is a possibility that upcoming domain renewal notifications from Openprovider may be marked as spam in reseller mail systems. These renewal emails are sent from dom-mgt@openprovider.nl and are properly authenticated with SPF and DKIM. The messages includ...

Question What are domain aliases in SpamExperts? Answer You can configure an unlimited number of domain aliases for a domain filter. All email traffic sent to these aliases will be filtered. Spam messages will stay quarantined in SpamExperts, and all legitimat...

Question What happens if email is delayed by the filter? Answer Delays of 10-15 minutes are very common shortly after setting up the spam-filter for the domain. This is a result of the self learning system of the filter: it does not know the receiving mail ser...

Question: What can I do when I receive spam? Answer: First check whether the e-mail is filtered by SpamExperts. If so, you will find a line in the e-mail headers that starts with X-SpamExperts-Class. Is this line not present? The the spam filter was not used. ...

Question Why can't I see the subject in the mail logs? Answer The major part of the e-mails is blocked on the SMTP level (%%258%%); at this point of the delivery, no subject is known by the filter yet, so it cannot be shown in the logs. Because of this uniform...

This article provides step-by-step guidance on integrating the Openprovider Email Solution module with WHMCS. For quick navigation, the following topics are covered: Uploading the Openprovider Email Solution files Configuring the Openprovider Email Solution se...

This is a series of articles in which we are going to cover registrant contact verification. This is a first article in a series in which we are going to search for email addresses and their respective statuses with regard to the aforementioned validation proc...

This is a series of articles in which we are going to cover registrant contact verification. This is a second article in a series in which we are going to start email verification procedure for a gTLD domain owner. Navigate here to go back to a previous articl...

This is a series of articles in which we are going to cover registrant contact verification. This is a third article in a series in which we are going to restart email verification procedure for a gTLD domain owner. Navigate here to go back to the first articl...

This is a series of articles dedicated to demonstrating how to get acquainted with Openprovider SSL API methods. If you want to go the beginning of this guide, please navigate to the article "1 How to choose a product". To get more information about our API in...