3 ms·

Please don't check for a full-stop/period. It excludes those who have their email address directly on a TLD.

by kingcharles 5y ago

sverhagen 5y ago
Is that an existing cohort? I'm not saying it isn't, I've just not run across them.
- easrng 5y ago
  Probably not. http://ai./ http://ai./ has a website, but no emails AFAIK
  - kingcharles 5y ago
    https://mail.gnome.org/archives/evolution-list/2002-January/msg00466.html https://mail.gnome.org/archives/evolution-list/2002-January/...
    - deleted 5y ago
      [deleted]
    - easrng 5y ago
      Huh, looks like n@ai. still exists, I wonder if it's in use anymore.
    - orf 5y ago
      20 years ago.
easrng 5y ago
No it doesn't. Those require a dot at the end. Without a dot, it's a hostname not a TLD.
- kingcharles 5y ago
  https://mail.gnome.org/archives/evolution-list/2002-January/msg00466.html https://mail.gnome.org/archives/evolution-list/2002-January/...
  - easrng 5y ago
    Without a dot it won't always use the TLD. easrng@easrng-laptop:~$ echo -e "127.0.0.1\tai" | sudo tee -a /etc/hosts 127.0.0.1 ai easrng@easrng-laptop:~$ ping ai PING ai (127.0.0.1) 56(84) bytes of data. ^C easrng@easrng-laptop:~$ ping ai. PING ai (209.59.119.34) 56(84) bytes of data. ^C
    - kingcharles 5y ago
      You're right. I did some experiments too after your first reply. It's definitely inconsistent depending on what software you are using (as some software now bypasses your system resolver and uses HTTP DNS etc). I've known people who had email addresses on TLDs and they never had any problem receiving email (without using a final dot), so I'm not sure how the MX record is being resolved or how the SMTP connection is being made. It's very possible that the mail daemon is automatically adding a dot to the end of every hostname.
- tsimionescu 5y ago
  Technically, without a dot at the end any domain name is a partially qualified domain name. Technically, 'gmail.com' should mean 'gmail.com.local.search.domain.' if your local search domain/zone is "local.search.domain."

Please don't check for a full-stop/period. It excludes those who have their email address directly on a TLD.

sverhagen 5y ago

Is that an existing cohort? I'm not saying it isn't, I've just not run across them.

easrng 5y ago
Probably not. http://ai./ http://ai./ has a website, but no emails AFAIK
- kingcharles 5y ago
  https://mail.gnome.org/archives/evolution-list/2002-January/msg00466.html https://mail.gnome.org/archives/evolution-list/2002-January/...
  - deleted 5y ago
    [deleted]
  - easrng 5y ago
    Huh, looks like n@ai. still exists, I wonder if it's in use anymore.
  - orf 5y ago
    20 years ago.

easrng 5y ago

No it doesn't. Those require a dot at the end. Without a dot, it's a hostname not a TLD.

kingcharles 5y ago
https://mail.gnome.org/archives/evolution-list/2002-January/msg00466.html https://mail.gnome.org/archives/evolution-list/2002-January/...
- easrng 5y ago
  Without a dot it won't always use the TLD. easrng@easrng-laptop:~$ echo -e "127.0.0.1\tai" | sudo tee -a /etc/hosts 127.0.0.1 ai easrng@easrng-laptop:~$ ping ai PING ai (127.0.0.1) 56(84) bytes of data. ^C easrng@easrng-laptop:~$ ping ai. PING ai (209.59.119.34) 56(84) bytes of data. ^C
  - kingcharles 5y ago
    You're right. I did some experiments too after your first reply. It's definitely inconsistent depending on what software you are using (as some software now bypasses your system resolver and uses HTTP DNS etc). I've known people who had email addresses on TLDs and they never had any problem receiving email (without using a final dot), so I'm not sure how the MX record is being resolved or how the SMTP connection is being made. It's very possible that the mail daemon is automatically adding a dot to the end of every hostname.
tsimionescu 5y ago
Technically, without a dot at the end any domain name is a partially qualified domain name. Technically, 'gmail.com' should mean 'gmail.com.local.search.domain.' if your local search domain/zone is "local.search.domain."