On 2022-03-25 13:27, Henrik K wrote:
On Fri, Mar 25, 2022 at 06:01:43AM -0400, Michael Grant wrote:
Unless there's an existing function in some plugin to do this, I'll
have to write my own. Little surprising that there isn't, this seems
like an obvious check!
There is already very basic HEADER() template support added in
trunk/4.0.0,
this would generally work:
askdns UNSUB_NXDOMAIN _HEADER(List-Unsubscribe:host)_ MX [NXDOMAIN]
It just tries to find something resembling a hostname (having valid
TLD) in
the header, preferring to match @(.*) first. So it doesn't
differentiate
between http, mailto etc.
is MX here include A/AAAA ?
common mistake many places, if there is no MX on a domainname, then most
checkers say domain send no mail from A/AAAA, doh :=)
