On 4/20/2018 3:30 AM, Karel wrote: > Hello, > > is it legitimate to use "To: undisclosed-recipients", or is to only > (mainly) used by spammers ?
It is legit. I don't see many spammers using this anymore, probably because of the incorrect perception that it indicates spam. It is no different from a "To: (not you)" header, such as this email. > > Seems to me, if I get an email, I should also know who else was the > email sent to. > Its like having a conference call and you don't know who's participating. No, it's like watching a television show and having everyone else know you're watching and where you live; it protects YOUR privacy and your email address. True story: I once attended a conference that the organizer sent notice emails with the 1000 or so attendees all listed in To: and CC: lines. I probably got 200 mails from people hitting reply-all and then replying to the reply -- does the hotel have a pool, how's your mother doing after her surgery, etc. ad nauseam. > > If I wanted to block emails without any recipient, what would be the > best way to do it ? Use header_checks. But I don't recommend it. > > thanks, > Karel > -- Noel Jones
