Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
onsemi.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 16:29:03 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 23.22.192.64 ↩ ec2-23-22-192-64.compute-1.amazonaws.com
Mail Server IPs
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
em1.onsemi.com hostmaster.onsemi.com 489 10800 3600 2419200 900
Primary NS (mname)
em1.onsemi.com
Admin Email (rname)
hostmaster@onsemi.com
Serial
489
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
em1.onsemi.com
em2.onsemi.com
em4.onsemi.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=cirdz5os._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
22 records- google-gws-recovery-domain-verification=42357869
- vmware-cloud-verification-6d232955-6142-4fd6-a48b-fc393a4ec6cd
- smartsheet-site-validation=2vtnlBIhlCfrrxErpFRRVkBXMNPKlbvj
- SPFv=spf1 redirect=cirdz5os._spf._d.mim.ec
- ms-domain-verification=460f71c0-6d5f-40cb-a76d-7d1e39db83fb
- 2ff4af648315f0eb4a47b5db1334dca79153afb6caf9ac50cb
- google-site-verification=RThnut19JBdQ_xgzP4x0nwtCUpwts5LugEUzwMARAzE
- Xg7qcFCb7jOy/lHUXyiB01PcGZMYKA1/LDJdrFjWZjVuaDsQ2+dO577IJoPMOy1xEvzoWCBonHVo5sk1o1/HSg==
- _globalsign-domain-verification=7Oa0TJ3HvJ3i4DN9iag5zG25L4SpckXSXLlkNlVprX
- Dynatrace-site-verification=6b9af55e-3ed7-487a-a486-87c2a08d6656__svdd3deuo8rs3s814n2mkip6gv
- onetrust-domain-verification=72e0fa66b44d43f2bb56a994c7cd3df6
- LfDzj/WbMYaaoPpn4NN+jTG9sDpylOqywIbZZSKvobBYrm1avwBdH9JOtkmSMeenlCCk5aeT+UgrWDhSSaHOZg==
- cisco-ci-domain-verification=73aace87916051b929dfee27635915c0c99380c9ac678bb6a2c8352bed8bc4db
- docker-verification=7b5172d0-29c0-4a84-b8de-6c038944d8d9
- onetrust-domain-verification=a257d4c948e449a3a1e9d8d5944a0f10
- onetrust-domain-verification=585a2b6fe635414a851c3a5fe9e35a0c
- MS=ms96587501
- google-site-verification=B7_z4KtlJLlqmSw8LY_NU0tgYAi72MdJ1w3jXjszbKc
- adobe-idp-site-verification=721cef391c5d63c283df7413fbf13bdada903feb4b2b89472defe2f648a693a6
- Q3oMoQzRagxX0QSe3CNhm+RY2TQVHfwGyfnohS1hVKHnPYdsmD1ezjSPR2fEA6p9HAWm4d19kbBZr9EyKndrgQ==
- edb-biganimal-verification=IBZwl5uSxDOrnGbvqiRT8ACj9q0Glebl
- apple-domain-verification=pmnojt0Kfng3w2Lg
Full email verification for onsemi.com
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