SPF records for tails dev return this error:
X-SPF-Signature: permerror sebbe.eu: error in processing during lookup of
domain of boum.org: Multiple SPF or TXT records for domain.
Apparently, you have multiple SPF records:
C:\Users\Sebastian Nielsen>nslookup -type=TXT boum.org
Server: OPNsense.localdomain
Address: 192.168.4.1
Non-authoritative answer:
boum.org text =
"v=spf1 redirect=_spf.investici.org"
boum.org text =
"v=spf1 include:_spf.tails.boum.org include:_spf.investici.org ~all"
C:\Users\Sebastian Nielsen>
You need to delete the first record "v=spf1 redirect=_spf.investici.org", as
the second record already includes this.
Also I would recommend setting -all instead of ~all.
Best regards, Sebastian Nielsen