M MailVeri
Inspect another domain in real time:

github.com

Detected Mail Infrastructure: Microsoft 365 / Exchange

ENTERPRISE B2B STATUS: ACCEPT
Deliverability Risk Low Risk
0%
Mail Exchangers (MX)
1 Active Exchanger(s)

Primary: github-com.mail.protection.outlook.com

Authentication Setup
✓ SPF Valid ✓ DMARC Active

Enforces strict domain sender policy

MailVeri Assessment for github.com

github.com represents verified corporate or institutional mail infrastructure. Inbound messages are handled by dedicated enterprise servers. Ensure optimal deliverability by verifying addresses before sales outreach.
MailVeri Deep Verification Engine

Need to verify email addresses on @github.com?

DNS checks confirm mail server availability, but cannot detect full inboxes, deleted mailboxes, or stealth spam traps. MailVeri verifies recipient mailbox deliverability in real time with 99% accuracy and zero host IP leaks.

Universal Credits Never Expire Sub-100ms API Latency 99% Deliverability Rate

Mail Exchanger (MX) Records

1 MX

Active inbound mail routes resolved from authoritative DNS:

github.com. IN MX 0 github-com.mail.protection.outlook.com.

SPF & DMARC Authentication

Sender Policy Framework (SPF):

v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_spf.salesforce.com include:servers.mcsv.net include:mktomail.com include:sendgrid.net ip4:62.253.227.114 ip4:166.78.69.169 ip4:166.78.69.170 ip4:166.78.71.131 ~all

Domain-based Message Authentication (DMARC):

v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1

Frequently Asked Questions about github.com

Q Is github.com a disposable email domain?

No. github.com is a standard corporate email domain. Mailbox existence and storage limits should be verified before sending.

Q Should I block signups using @github.com?

No. @github.com represents authentic user or corporate mailboxes. Ensure deliverability by verifying individual recipient mailboxes via MailVeri API.

Q How do I verify email addresses on github.com automatically?

You can integrate MailVeri's low-latency Email Verification API. It checks domain deliverability, mailbox existence (RCPT TO), and catch-all status in under 200ms.

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