Email Deliverability
rocket.chat
86%
A86 / 100 points
7
MX hosts
14
MX IPs
0
Blacklisted
2
No PTR
2
No FCrDNS
Issues (5)
highMX IP 2800:3f0:4003:c14::1a has no PTR (reverse DNS)
Gmail and Microsoft both require reverse DNS on sending IPs. Without it, mail from this host is almost always rejected or spam-foldered.
→ Add a PTR record at your hosting provider. For cloud MTAs (AWS SES, Mailgun, etc.) this is managed by the provider.
highMX IP 2800:3f0:4003:c14::1a has no PTR (reverse DNS)
Gmail and Microsoft both require reverse DNS on sending IPs. Without it, mail from this host is almost always rejected or spam-foldered.
→ Add a PTR record at your hosting provider. For cloud MTAs (AWS SES, Mailgun, etc.) this is managed by the provider.
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.
infoBlocklist status unknown for 7 MX IP(s)
2607:f8b0:4004:c1f::1b, 2800:3f0:4003:c14::1a, 2a00:1450:400b:c02::1b, 2800:3f0:4003:c14::1a, 2a00:1450:400b:c02::1b: 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.