Very odd. I've just received the following email:
Subject: Caution - access to Spamhaus data-feed may be improperly configured
Dear Spamhaus user,
I am writing to you from MXTools.com, the authorised Spamhaus reseller. Our automated server monitoring tools have detected that your organisation is querying Spamhaus public servers with an unusually high volume from the following IP address: [External IP of our Astaro machine] .
Many users are unaware that the public service is provided free of charge only for low volume mail servers (non-commercial) or for small organisations with no other means to protect themselves against spam (non-profits, charities). This usage policy is well explained at: The Spamhaus Project - DNSBL Usage Terms.
Since millions of users across organisations of all sizes now depend on Spamhaus to keep email flowing, they encourage high volume users and other commercial services to move to our sponsored service. This prevents overloading of the public mirrors and keeps response times snappy. Pricing for the sponsored data-feed is under $1 USD/user (much less for Service Providers & Schools) - which is clearly the most affordable way to protect your organisation against spam and malware. As a full subscriber you are also entitled to unlimited free technical support and free pro-active monitoring of your email server.
Thank you for using the DNSBL data-feed to protect your users from the daily deluge of spam. Through your continued use of the sponsored service, Spamhaus can ensure sustained funding of the free public mirrors that are used by millions of home users and non-commercial or charitable organisations. Your contribution also helps support our research efforts to fight spammers and other cyber-miscreants.
Please consider registering now using this link: SpamTEQ - Spamhaus Datafeed Service Group If you have any additional questions please do not hesitate to contact me at the address or telephone number below.
Sincerely, Spamhaus Technology & MXTools
[signature snipped]
PS If you are already a Spamhaus Datafeed client, Thank You - we truly appreciate your support! It does appear that one of your servers (perhaps forgotten from the trial period) needs to be re-configured. Please contact us - support@mxtools.com – so we can help make the required changes and avoid any service interruptions.
Is Spamhaus still used as an RBL by Astaro? If so, has anyone else received an email like this? And what would happen Spamhaus decided to block my IP?
Background: currently, we receive about 4000-5000 emails a day, with 3000-4000 of them being rejected as spam.
Ifor Davies
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