Isteer.net

This is in relation to my previous post on the same topic.

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Isteer.net: No bounce processing, no RFC2142/5321 required role addresses, no respect for opt-out

Isteer.net, a domain name registered to IPSS-Intelligent Precision Solutions and Services Oy, a Finnish limited company, is an ESP to various Finnish advertisers. They don’t process bounces, they deliberately refuse mail to abuse and postmaster, and they don’t respect opt-out.

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