Email Deliverability
urosario.edu.co
90%
A90 / 100 points
1
MX hosts
8
MX IPs
0
Blacklisted
0
No PTR
0
No FCrDNS
Issues (4)
highSPF exceeds 10 DNS lookups
RFC 7208 requires SPF processing to stop after 10 DNS lookups. Anything beyond causes a permerror, which most receivers treat as an SPF failure.
→ Flatten your SPF record by replacing include: chains with static IP ranges, or use an SPF flattening service.
lowDMARC policy is quarantine, not reject
Quarantine sends unauthorized mail to spam. Reject blocks it outright. Move to reject once DMARC reports show no legitimate senders being affected.
→ Change p=quarantine to p=reject once you trust your reports.
lowOnly one MX host
Single MX means any outage or block at that host results in mail loss or bounces. Industry best practice is at least two MX records at different hosts.
→ Add a secondary MX at a different provider or a backup MX service.
infoBlocklist status unknown for 4 MX IP(s)
2a01:111:f403:f909::4, 2a01:111:f403:c927::, 2a01:111:f403:c936::1, 2a01:111:f403:c927::7: no blocklist answered for these addresses (our queries failed, or the address is IPv6, which these IP blocklists don't cover). They are left out of the reputation score, neither clean nor listed.