On 04/21/2014 12:37 PM, Vlatko Salaj wrote: > I think Franck wrote: >>> That doesn't seem to me like a shocking level of trust. >> Yes indeed, but then, the recent breaches shows too much trust >> has been sprinkled all around. Many ESP will provide you with >> dedicated IPs for your sends, this allows you to control your >> deliverability, the email security, etc... They come at a price, >> but you have what you pay for. > should i read this as: if u want DMARC 3rd party support, please > pay?
No, this was a concern and for many a best practice well before DMARC arrived. Using a large pool of vendor/ESP IP addresses leaves the sending organization (ABC) exposed to: - IP reputation impacted by all other customers - Another ESP customer's account being used to send email as ABC (depends on ESP controls) - Security of entire ESP infrastructure versus a small subset (dev systems, disaster recovery, etc) In other cases it's part of a more general policy that the vendor/ESP not use shared infrastructure when handling any of the contracting company's (customers') data. --S. _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
