you try again, you may see some IPs only black listed by UCEPROTECT, which you can conveniently ignore.
There are many many email blacklists; however, there are only a few that are widely used and UCEPROTECT is not one of them.
This blacklist service usually block entire IP range, then make you pay $$ to white list it at whitelisted.org. My IP block got on the list a while ago but I haven’t seen it affecting my mails. Mails to gmail and outlook/hotmail definitely not affected (likely they don’t care about this blacklist).
From trend micro
Trend Micro is actively looking into reported issues where UCEPROTECT is blocklisting IP addresses that Trend Micro uses for sending out email messages on behalf of our customers. UCEPROTECT claims that this is an anti-spam measure and publicly suggests our customers change service provider if the issue is not resolved quickly.
Currently these blocking issues cannot be resolved permanently by Trend Micro because of the following reasons:
· The criteria for customer IP’s being placed on UCEPROTECT block lists are not publicly available and appear to be overly aggressive in nature (entire IP ranges can be blocked based on a single ‘suspicious’ IP).
· UCEPROTECT refuses to interact with vendors (including Trend Micro) to help assist in understanding the criteria behind the blocking whereas other more reputable blocklists will engage with customers so that customers can proactively correct behaviour.
· Unlike other reputable blocklists UCEPROTECT also charges a fee for delisting which Trend Micro recommends our customers NOT to pay. Paying the fee will not prevent UCEPROTECT from again blocking the same IP in 1 day, 1 week etc. leading to further blocklisting and payment requests in the future.
As always, Trend Micro takes necessary measures to avoid having our IPs identified as a spam source. At the same time, we are advising our customers and their email recipients to avoid using UCEPROTECT’s blocklist.
From ProofPoint (They manages email spam control for iCloud / Apple)
Proofpoint’s Official Position
UCEProtect and Backscatterer.org are owned by the same organization. UCEProtect and Backscatterer will list IPs that send spam and/or send backscatter (misdirected bounces). Both of these blocklists are considered extreme in that their listing policies are aggressive enough that we typically see very little actual impact to email flow.
UCEProtect is a public DNSBL that lists IPs that send spam to their spam traps. UCEProtect also charges a delisting fee which Proofpoint will not pay and does not recommend paying for list removal.
Backscatterer.org lists IPs that send backscatter spam (misdirected bounces). Backscatterer.org also charges a delisting fee which Proofpoint will not pay and does not recommend paying for delisting. Additionally, in our experience, we typically see very little actual impact to email flow due to Backsatterer.org’s aggressive listing policies.
Proofpoint will not pay and does not recommend paying for list removal.
What I’m trying to say is… this hooligan blacklist is not that important to let me spend time moving my box since any network can be blocked by them just so they can make money.