Hello, 

Thank you for contacting OVHcloud Technical Support regarding the UCE Protect blacklist.

We're sorry to hear that you are experiencing issues with sending your emails.

Recently, UCE Protect has placed over a thousand new ASNs on their blacklist. Unfortunately, our ASN (AS16276) has been effected by this. To view the list of other effected ASNs and the number of new ASNs added, please check the following links:

http://www.uceprotect.net/en/l3charts.php
http://stats.uceprotect.net/?page=su

Our legal abuse team has reached out to UCE Protect in order to remove our ASN from the blacklist. Ultimately, UCE Protect want all of the newly blocked ASNs to pay for express delisting. Like all major providers, OVHcloud does not pay for blacklist delisting as it is a service outside of our control. Paying for delisting on blacklists only leads to an increase in blacklisting overall and ultimately hurts the industry.

UCE Protect claims automatically delist ASNs after 1 week, which we hope will happen but as it is outside of our control, we cannot provide any guarantees regarding this.

If you are currently effected by this, we recommend the following:

1. To send your mail via IPv6. UCE Protect does not blacklist email sent via IPv6. All of our OVHcloud services come with at least a single IPv6 address which you can configure. All major email providers now support IPv6.

2. Ask the receiving party to contact their mail provider and request that they don't use the UCE Protect blacklist for the time being.

We thank you for your understanding on this. OVHcloud is committed to having an open trusted cloud and it is through the cooperation of users like you that will allow us to continually improve our service going forward.

If you have any further questions or concerns, please do let get in touch. We're happy to help.

Best regards,