Honest question: Is there any reason to not just blacklist all emails from TLDs that aren't the Big Four (.com, .net, .org, .gov) and country TLDs (eg: .co.uk, .jp, etc.)?
I can't recall ever needing, let alone wanting, email from the later TLDs like .biz or any of the bloody stupid new TLDs that comprise entire words.
And you left out dot-edu.
And I get a fair bit of ham from other weird TLDs. So I think a whitelist is a bad idea. But that's because I prefer to have some spam get through than have ham get blocked by mistake. Even with my very sloppy algorithm, the only time spam ends up in my inbox is if a spammer spoofs one of my contacts, and that is extremely rare.
I typically register both a new TLD and a .com, and I use the .com for the email campaigns and reply-to
if it gets flagged that doesnt affect my more official one-to-one emails from the actual domain
so I would say, maybe? because I’m not allergic to “bloody stupid” TLD’s and have already adapted to what you’re wondering about
> Honest question: Is there any reason to not just blacklist all emails from TLDs that aren't the Big Four (.com, .net, .org, .gov) and country TLDs (eg: .co.uk, .jp, etc.)?