Re: [exim] MX record exists but exim doesn't detect it

On 25/12/2020 13:01, Sagar Acharya via Exim-users wrote:
> The central problem is however, that dig gives me the correct MX record and nslookup doesn't. MX record exists, just exim is not able to find it.
>
> I even tried this email id. It gives these prompts
> ...
> dnslookup router called for sagaracharya@???
>      domain = tutanota.com
> tutanota.com in "*"? yes (matched "*")
> DNS lookup of tutanota.com (MX) gave TRY_AGAIN
> ...
>
> How does exim find DNS? Which command does it particularly use?

Exim uses a library routine called res_search().
It does not use a command (meaning en executable program).

The library accesses the system facilities for getting DNS results.
How those work are not under Exim's control, beyond the API of
the library.
--
Cheers,
Jeremy