Email DNS records for posterarc.org
MX, SPF, DMARC and DKIM records published for posterarc.org.
posterarc.org can receive email: 1 MX record found. The MX records point to Microsoft mail servers. Authentication records found: SPF. Not found: DMARC, DKIM (among common selectors).
| Check | Result | What it means |
|---|---|---|
| MX | Found (1) | The domain is configured to receive email. |
| Mail provider | Microsoft | Inferred from the MX host names: they point to Microsoft mail servers. |
| SPF | Found | The record ends with ~all: mail from servers not listed should be treated as suspicious but accepted (soft fail). |
| DMARC | Not found | No DMARC policy tells receivers how to handle messages that fail authentication. |
| DKIM | Not found among common selectors | DKIM can only be confirmed with the selector used by the sender, so this does not mean the domain has no DKIM. |
Last checked: 2026-10-06 (UTC). DNS records can change over time. This report lists public DNS records; their presence does not by itself mean that a domain or its messages are safe.
MX records for posterarc.org
- 10 posterarc-org.mail.protection.outlook.com
Email authentication records for posterarc.org
SPF record
v=spf1 include:spf.protection.outlook.com ~all
Check a specific email address @posterarc.org
This page checks how posterarc.org is configured for email. It does not confirm that a specific mailbox exists — to check one address, use the form below.
Server location
IP address34.149.120.3
CountryUnited States
ASN396982
Name servers
NS 1ns2.siteground.net.
NS 2ns1.siteground.net.
TXT records for posterarc.org
TXT 1MS=ms65245951
TXT 2v=spf1 include:spf.protection.outlook.com ~all