ZeroSpam

ZeroSpam is a spam filter, block list, and firewall promoted for businesses, headquartered in Quebec. Mail is routed through mailservers owned by ZeroSpam before it's passed along to the recipient domain's mailservers for final delivery. The recipient is able to manage a lot of delivery settings such as allow lists, but senders may also be able to contact a postmaster@zerospam.com and abuse@zerospam.com address to get more in-depth analysis.

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450All 450 codes →

smtp;450 4.2.0 <email@example.com>: Recipient address rejected: example.com greylisted for 60 seconds by ZEROSPAM

Low severity

554All 554 codes →

smtp;554 5.7.1 <email@example.com>: Recipient address rejected: Not in recipient list

Other spam filter services

Built with

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