The Spam Eating Monkey SEM-FRESH blocklist is a domain-based blacklist that automatically lists newly registered domains for a period of 5 days to help identify potential spam.
The Spam Eating Monkey SEM-FRESH blocklist is a domain-based reputation list (URIBL) that specifically targets newly registered domains. Its policy is to list any domain that was first registered within the last five days. Mail server administrators use this blacklist as part of a larger filtering strategy, operating on the principle that brand-new domains are sometimes associated with spam or phishing campaigns. It's a temporary listing, designed to add a small scoring penalty to mail from unestablished domains.
It is not a traditional blocklist that indicates malicious activity, but rather a policy-based list that flags domains based on age. Here are some of the technical details for this blacklist:
Spam Eating Monkey SEM-FRESH is operated by SpamEatingMonkey.com. The organization provides real-time IP and domain reputation data used by system administrators to help prevent the delivery of unwanted mail.
A common question is why they are blocking mail. Spam Eating Monkey clarifies that they do not block mail directly. Instead, they publish reputation information (or data). The administrator of the recipient's mail server uses this data at their discretion. If a domain is listed on a blacklist (like SEM-FRESH), the recipient's server administrator decides what action to take, which may include scoring the email as more likely to be spam.
Removal from the Spam Eating Monkey SEM-FRESH blocklist is an automatic process. There is no manual delisting request form or procedure required for this specific list.
Domains are automatically delisted exactly five days after their registration date. Since the criteria for this blacklist is simply the age of the domain, once your domain is older than five days, it will no longer meet the listing criteria and will be removed. You do not need to take any action.
The impact of being listed on the Spam Eating Monkey SEM-FRESH blacklist is generally considered low. Most mail systems that use this list do not use it to outright reject email. Instead, it is used as one of many signals in a larger scoring system.
A listing may cause your emails to have a slightly higher spam score, which could increase the chances of them landing in the spam folder, but it is unlikely to cause a hard bounce or rejection. Because every new domain is listed, it is not an indicator of bad sending practices, just of newness. The impact diminishes and disappears completely once the domain is more than five days old.
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