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fio.cz
Deliverability
Email Deliverability
fio.cz
A+
86
/ 90
3
MX hosts
4
MX IPs
0
Blacklisted
1
No PTR
1
No FCrDNS
Issues (2)
high
MX IP 2001:67c:454::20 has no PTR (reverse DNS)
info
DKIM could not be verified
Back to fio.cz report