Email DNS records for rbtonline.org
MX, SPF, DMARC and DKIM records published for rbtonline.org.
Receives email: Yes Disposable: No Free provider: No SPF: Yes DMARC: No
rbtonline.org can receive email: 1 MX record found. Authentication records found: SPF, DKIM. Not found: DMARC.
| Check | Result | What it means |
|---|---|---|
| MX | Found (1) | The domain is configured to receive email. |
| Free email provider | No | Not a free mailbox service like Gmail or Yahoo. |
| 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 | Found (default) | A DKIM public key is published under the selector default. |
Last checked: 2026-10-26 (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.
Next steps
MX records for rbtonline.org
- 0 rbtonline.org (72.29.77.211)
Email authentication records for rbtonline.org
SPF record
v=spf1 ip4:72.29.77.211 +a +mx +include:spf.mfilter.dimenoc.com ~all
DKIM record (default)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDJx5FCQ1lZpsudmdVMbqJmghWptZ4kEQzQeI0ze0/tsPq1sZlfIdZii/RTjqgaijl/tHbhxM8TkRYjur/qdtseVOh+AXmzMZU5fTAbt48e+M3BT1MGR17Clj9KWDjY0yZwLVb+wS/oIPRq4hjel1cMChmYq0O9s1SzVYGNdWJgAwIDAQAB;
Check a specific email address @rbtonline.org
This page checks how rbtonline.org is configured for email. It does not confirm that a specific mailbox exists — to check one address, use the form below.
Server location
Name servers
TXT records for rbtonline.org
Frequently asked questions
Can rbtonline.org receive email?
Yes. rbtonline.org publishes 1 MX record, so it is configured to receive email. To know whether a specific address exists, verify that address.
Does rbtonline.org use SPF and DMARC?
rbtonline.org publishes an SPF record. It does not publish a valid DMARC record.
Is rbtonline.org a free email provider?
No. rbtonline.org is not on our list of free mailbox providers such as Gmail, Outlook or Yahoo.