Email Deliverability
yumpu.com
A
82 / 90
5
MX hosts
10
MX IPs
0
Blacklisted
1
No PTR
1
No FCrDNS
Issues (4)
highMX IP 2800:3f0:4003:c0f::1b has no PTR (reverse DNS)
mediumSPF uses ~all (softfail) instead of -all (hardfail)
lowDMARC policy is quarantine, not reject
infoDKIM could not be verified