On Sat, Nov 02, 2024 at 06:34:36AM +0800, Adriel via Postfix-users wrote:

> There is a mail system said,
> 
> host east.xxx.com[3.138.xx.xx] said:
>     554 5.7.1 <adriel@myemail.click>: Sender address rejected: We reject all
>     .click domains.
> 
> I am just not sure, does the .click domain have low reputation on internet?
> so other providers choose to just reject it?
> 
> what's the high reputation domains then, .com/.net/.org?

Rather depends on which registries/registrars had a price promotion
attracting abusers recently enough to lead operators to choose to refuse
traffic.

The long-established gTLDs ccTLDs with a million+ registrations are by
and large not aggressivly priced and not blocked.

    154342903    com
    19562007     cn
    17678083     de
    12475591     net
    10991840     org
    10372996     uk
    6210775      nl
    5702333      ru
    5386914      br
    4263546      au
    4198061      fr
    4000000      in
    3694658      xyz
    3656296      eu
    3540175      info
    3481481      it
    3430626      shop
    3395833      ca
    3100000      co
    3026500      online
    2766657      top
    2572263      pl
    2532060      ch
    2100000      us
    2079045      es
    1881840      pt
    1766746      jp
    1724239      be
    1632933      ir
    1571837      store
    1510279      site
    1480179      at
    1474115      cz
    1403289      se
    1400000      cc
    1365524      mx
    1336066      za
    1320645      dk
    1236222      tr
    1216203      biz
    1112750      vip
    1100000      io

A longer list is at: https://stats.dnssec-tools.org/#/?top=tlds&tld_tab=3
That includes "dev" and other gTLDs that don't AFAIK have a history of
reputation problems.

You can also search for price breaks on domain registrations and avoid
TLDs that have been aggressively discounted.

-- 
    Viktor.
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