4 ms·
IPs are still a precious commodity, hence the threat of being listed by a high quality blocklist like Spamhaus provides an effective degree of encouragement for
by ttul 6y ago
IPs are still a precious commodity, hence the threat of being listed by a high quality blocklist like Spamhaus provides an effective degree of encouragement for senders to clean up their act.
Domain blocklists also exist, but the stick isn’t as sharp, because domains are a dime a dozen.
- diveanon 6y agoIPv6 has entered the chat.
- sethammons 6y agoMeh. Something like 95% of mail servers wont work with IPv6 last I checked. Source: I helped build and maintain an MTA that moved over a trillion emails last year.
- fulafel 5y agoDeployed mail servers are very homogenous, there are probably 10000 implementations of MTA software but 99.999% of mail is handled by the top 10.