Email DNS records for sidertec.ind.br
MX, SPF, DMARC and DKIM records published for sidertec.ind.br. Domain age: 13 years.
Receives email: Yes Disposable: No Free provider: No SPF: Yes DMARC: Yes
sidertec.ind.br can receive email: 1 MX record found. Authentication records found: SPF, DMARC, DKIM.
| 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 | p=none | The policy is none: receivers are asked to take no specific action on messages that fail DMARC. It is typically used to monitor authentication. |
| DKIM | Found (default) | A DKIM public key is published under the selector default. |
Last checked: 2026-11-09 (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 sidertec.ind.br
- 0 sidertec.ind.br (177.136.251.242)
Email authentication records for sidertec.ind.br
SPF record
v=spf1 +a +mx +ip4:177.136.251.242 include:spf-c.mailbaby.net include:spf.antispamcloud.com ~all
DMARC record
v=DMARC1; p=none;
DKIM record (default)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvBE6l1s3OjWF5EejwQUybahE2dT6TK0iTOjXTFZ6gSUslnQL+vS7skDyAN/+TlCCAERLW7pEbB0Ts3HiGChNGioSj+BTPbKqvgN1ejBDWt/BREx8qpZC6EbW22tc3ZsPEgHU7Y1p9uhRiFR5ruDgchNMw3PcUvn6o3Hj7ehdYm2GHrHwLBhvDRAb6aa+TxjDeHdMFUPqZ8zltG3ukcL0M8A1h4W2E9zwPVMZ3mZ1cvs8Bd2iQW7Ap97gZ1/R2LTmIRMFZYTP3zlDXYFtPbW16kiiT9Q8iFDQe0lykfL9KhVsQ9fuBWDQWiHNdzzm/ApFCDAbFydGSDnLNhLo3FsM7wIDAQAB;
Check a specific email address @sidertec.ind.br
This page checks how sidertec.ind.br is configured for email. It does not confirm that a specific mailbox exists — to check one address, use the form below.
Domain registration
Server location
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TXT records for sidertec.ind.br
Frequently asked questions
Can sidertec.ind.br receive email?
Yes. sidertec.ind.br publishes 1 MX record, so it is configured to receive email. To know whether a specific address exists, verify that address.
Does sidertec.ind.br use SPF and DMARC?
sidertec.ind.br publishes an SPF record. Its DMARC policy is p=none.
Is sidertec.ind.br a free email provider?
No. sidertec.ind.br is not on our list of free mailbox providers such as Gmail, Outlook or Yahoo.