Hi Bogdan1,
First, pls. be informed:
vps343915.ovh.net resolves to 164.132.48.211
but
164.132.48.211 resolves to 211.ip-164-132-48.eu
You should consider either to change the reverse entry for your IP ( contact OVH pls for such a desire ) or/and consider to change the standard "
vps343915.ovh.net" hostname on your server to your main FQDN ( "mactrh.cz" ) "
YOUR-DESIRED-HOSTNAME.mactrh.cz" ( don't forget to create a corresponding
"A" - entry on your primary nameserver, according to your "
YOUR-DESIRED-HOSTNAME" ) and afterwards, ask OVH - support to reverse the IP to the new hostname, or use the ( possible ) options on THEIR Control Panel, to reverse a rented IP to a desired hostname.
Second, you added an obsolete
SPF - entry, in addition to your
TXT - SPF - entry. Pls. note that such entries should be removed by now, according to "
RFC 7208" (
=> https://tools.ietf.org/html/rfc7208 ).
Code:
3.1. DNS Resource Records
SPF records MUST be published as a DNS TXT (type 16) Resource Record
(RR) [RFC1035] only. The character content of the record is encoded
as [US-ASCII]. Use of alternative DNS RR types was supported in
SPF's experimental phase but has been discontinued.
In 2003, when SPF was first being developed, the requirements for
assignment of a new DNS RR type were considerably more stringent than
they are now. Additionally, support for easy deployment of new DNS
Third, your current
TXT - SPF - entry is valid, but very
STRICT ( "
v=spf1 +a +mx +a:vps343915.ovh.net -all" ). You should consider to use:
v=spf1 +mx +a a:vps343915.ovh.net ip4:164.132.48.211 ?all
(or, when you change the hostname as suggested above! ):
v=spf1 +mx +a a:YOUR-DESIRED-HOSTNAME.mactrh.cz ip4:164.132.48.211 ?all