Email domain · Microsoft 365 (Exchange Online)
airtelmail.in email servers, SPF and DMARC
Mail for @airtelmail.in goes to airtelmail-in.mail.eo.outlook.com (MX priority 1) and 3 backup hosts, as DNS showed on 5 November 2026. These are Microsoft 365 (Exchange Online) servers. The domain publishes 2 separate SPF records, which RFC 7208 treats as a permanent error and no DMARC record, which decide whether mail claiming to be from @airtelmail.in is trusted.
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airtelmail.in mail DNS on 5 November 2026
| Priority | MX host | Platform |
|---|---|---|
| 1 | airtelmail-in.mail.eo.outlook.com | Microsoft 365 (Exchange Online) |
| 100 | us2.mx1.mailhostbox.com | Not identified |
| 100 | us2.mx2.mailhostbox.com | Not identified |
| 100 | us2.mx3.mailhostbox.com | Not identified |
| SPF | v=spf1 redirect=_spf.mailhostbox.com | v=spf1 include:spf.protection.outlook.com -all |
|---|---|
| DMARC | None published |
| MTA-STS | None published |
| TLS reporting | None published |
Read on 5 November 2026 with dig against 1.1.1.1 (8.8.8.8 as fallback); nothing sent to the mail servers. Check the records today with the email provider lookup.
airtelmail.in MX records
airtelmail.in publishes 4 MX hosts; senders try the lowest priority number first (airtelmail-in.mail.eo.outlook.com, 1) and fall back to the others in order.
11 other domains we checked on the same day also hand their mail to Microsoft 365 (Exchange Online) servers, with different records from airtelmail.in: ciudad.com.ar, comhem.se, entelchile.net, in.gr, ono.com, pldtdsl.net, plus.net, ptcl.net.pk and 3 more.
airtelmail.in SPF record
airtelmail.in publishes 2 SPF records: v=spf1 redirect=_spf.mailhostbox.com and v=spf1 include:spf.protection.outlook.com -all. RFC 7208 §4.5 says a receiver that finds more than one must return a permanent error, so SPF checks for @airtelmail.in mail fail outright at strict receivers.
In plain terms, it delegates to _spf.mailhostbox.com. The top level uses 1 DNS-querying term; SPF allows 10 in total including nested includes (RFC 7208 §4.6.4).
airtelmail.in DMARC policy
_dmarc.airtelmail.in returned no DMARC record on 5 November 2026. Receivers therefore get no instruction about mail that fails SPF and DKIM, which makes @airtelmail.in easier to spoof (RFC 7489).
Can you verify @airtelmail.in addresses?
Our checker treats @airtelmail.in like any domain: syntax, MX, disposable and role checks first, then a made-up address to rule out a catch-all, then your address at RCPT TO, disconnecting without sending. We have not published a test of how airtelmail-in.mail.eo.outlook.com answers for @airtelmail.in, so we make no claim here about whether single mailboxes can be confirmed; each result carries its own reason.
Cleaning a list with these addresses
DNS tells you where mail goes, not whether one person's mailbox still exists. For a list, run the whole file through a verifier before you send: invalid rows come out, risky rows (catch-all, unknown, refused) go in their own segment, and valid rows are safe to mail.
What Microsoft 365 (Exchange Online) documents for senders
- Microsoft 365 tells each organisation to point its MX record at a host of the form
<domain-key>.mail.protection.outlook.com. Microsoft: external DNS records for Microsoft 365 - Microsoft requires domains sending more than 5,000 messages a day to Outlook.com, Hotmail and Live addresses to pass SPF, DKIM and DMARC (at least p=none, aligned with SPF or DKIM). Microsoft: requirements for high-volume senders
Common questions
- What are the MX records for airtelmail.in?
- On 5 November 2026:
airtelmail-in.mail.eo.outlook.com(priority 1),us2.mx1.mailhostbox.com(priority 100),us2.mx2.mailhostbox.com(priority 100),us2.mx3.mailhostbox.com(priority 100). - Does airtelmail.in have SPF and DMARC?
- On 5 November 2026
airtelmail.inpublished 2 separate SPF records, which RFC 7208 treats as a permanent error and no DMARC record. - Is airtelmail.in a disposable email domain?
- No.
airtelmail.inis not on the disposable domain list our checker uses, so @airtelmail.in addresses are checked like any other mailbox. See the disposable domain checker for the list.
Free checks for @airtelmail.in lists
- Bulk email checker for a pasted list or CSV
- Verify a whole file with a reason for every row
- Microsoft 365 address checker
- SPF lookup counter
- MTA-STS checker
- Disposable email checker
Another domain? See every email domain we have mapped and what our checker does at each mailbox provider.
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