On Sun, Apr 30, 2023 at 01:33:13AM +0100, Allen Coates via Postfix-users wrote:
> Any ideas on the opposite - i.e. WITHOUT a domain?
>
> I sometimes receive messages from "u...@co.uk"...
With eTLD (effective TLD) domains that have neither address nor MX
records the
On 28/04/2023 14:59, Gerd Hoerst via Postfix-users wrote:
> Hi !
>
> question 1st : is it a good idea to reject any email which is not sent from a
> domain (means sen...@domain.tld) any
> other like sen...@sub.domain.tld or sub.sub.domain.tld is rejected ?
Any ideas on the opposite - i.e.
On Fri, Apr 28, 2023 at 06:38:04PM +0200, Jaroslaw Rafa via Postfix-users wrote:
> Also take into account that many countries use two-level domain registration
> scheme ...
In Japan, 3rd-level public suffixes are quite common, taking the form:
...jp.
For example:
hospital.hekinan.aichi.jp.
April 29, 2023 at 12:38 AM, "Jaroslaw Rafa via Postfix-users"
wrote:
>
> Dnia 28.04.2023 o godz. 15:59:53 Gerd Hoerst via Postfix-users pisze:
>
> >
> > question 1st : is it a good idea to reject any email which is not
> > sent from a domain (means sen...@domain.tld) any other like
> >
Dnia 28.04.2023 o godz. 15:59:53 Gerd Hoerst via Postfix-users pisze:
>
> question 1st : is it a good idea to reject any email which is not
> sent from a domain (means sen...@domain.tld) any other like
> sen...@sub.domain.tld or sub.sub.domain.tld is rejected ?
As others have said, it's a total
On 2023-04-28 at 09:59:53 UTC-0400 (Fri, 28 Apr 2023 15:59:53 +0200)
Gerd Hoerst via Postfix-users
is rumored to have said:
Hi !
question 1st : is it a good idea to reject any email which is not sent
from a domain (means sen...@domain.tld) any other like
sen...@sub.domain.tld or
> question 1st : is it a good idea to reject any email which is not sent from a
> domain (means sen...@domain.tld) any other like sen...@sub.domain.tld or
> sub.sub.domain.tld is rejected ?
Generally, no, because you will reject legitimate domains
that just look like subdomains, e.g. *.co.uk,
Gerd Hoerst:
> question 1st : is it a good idea to reject any email which is not sent from a
> domain (means sen...@domain.tld) any other like sen...@sub.domain.tld or
> sub.sub.domain.tld is rejected ?
>
> at least i tried with header checks in pcre
>
> /^From:\.*@.*\.*\.*/ DISCARD NO
On 4/28/2023 8:59 AM, Gerd Hoerst via Postfix-users wrote:
Hi !
question 1st : is it a good idea to reject any email which is not
sent from a domain (means sen...@domain.tld) any other like
sen...@sub.domain.tld or sub.sub.domain.tld is rejected ?
That seems like a bad idea, extremely
