[Rspamd-Users] Repeated ' temporary DNS error ' on first attempt at SPF lookup for a domain

[G.W. Haywood]

Hi there,

On Thu, 18 Jun 2026, That Linux Gal via Users wrote:

> ... rspamd often returns "temporary DNS error" on the first time it tries to do an SPF lookup
> ...
> ...
> user at host:~# sudo rspamadm dnstool spf -d gogo.com
> Cannot get SPF record: temporary DNS error
>
> user at host:~# sudo rspamadm dnstool spf -d gogo.com # 5 seconds later
> Cannot get SPF record: no SPF record
> ...
> ...
> same symptoms when I change 5353 to 53 (my local running copy of BIND). Or both ...
> ...

The tool I would use (at least with bind) to investigate these things
is 'dig'.  That will tell you what the nameserver sees and not some
garbled version of what some other tool says it thinks it saw.

You don't say what version of rspamd you're running.  It looks like
there may have been some changes in this area not long ago:

https://github.com/rspamd/rspamd/issues/4298

It took half an hour or so for Github to load the page for me. :(

You do know that SPF type 99 records are obsolete?  Just checking.
It's all TXT, as they don't quite say. :)

-- 

73,
Ged.