MX records for github.com

github.com receives email through 1 mail server, with github-com.mail.protection.outlook.com at the highest priority (0).

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Mail servers

Priority	Mail server	IPv4
0	github-com.mail.protection.outlook.com	52.101.11.9

More lookups for github.com

All DNS records
SPF record
DMARC policy
WHOIS record

MX (Mail Exchanger) records tell other mail servers where to deliver email for github.com. Each record has a priority, and sending servers try the lowest number first, falling back to higher ones for redundancy. If these records are missing or wrong, the domain cannot receive mail. To check any other domain, use the MX Lookup tool.