Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
postandcourier.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 22:34:48 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 99
- us-smtp-inbound-1.mimecast.com: 99
A / AAAA Records
- 192.104.183.109 ↩ cms.us-east-1.vip.tn-cloud.net
- 192.104.183.209 ↩ cms.us-east-1.vip.tn-cloud.net
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns65.domaincontrol.com dns.jomax.net 2026031900 28800 7200 604800 600
Primary NS (mname)
ns65.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031900
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns66.domaincontrol.com
ns65.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:spf1.postandcourier.com include:spf3.postandcourier.com include:sendgrid.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- _tc9l497bal6wckojgt2mctt4aalz9xk
- google-site-verification=ntDpiw-45rzm7t4vJV9qBksydFQ5XWrcXEbgnT9AWIY
- google-site-verification=rAW9DX7yfiFF82k05QGF6LbZBkxcKxMTzAwNv0OCKAM
- logmein-verification-code=26a057c4-53ec-476d-9f1f-45d13f16e880
- 0ed1fe018a368aacd8ca044918a7693f9568433154
- atlassian-sending-domain-verification=54c8b387-a766-4781-9a5a-fa87cf7964bb
- MS=F8E01795FF3502D041112663C5B666FC50FCF46B
- ca3-97d480a9897648d595f944cc6da4f87c
- SPFv=spf1 include:us._netblocks.mimecast.com include:spf1.postandcourier.com include:spf3.postandcourier.com include:sendgrid.net ~all
- google-site-verification=gL-Bl7ULCV3KMihbJROJq1d-i5LSRD9mevTMCnIYlPQ
- google-site-verification=FvrmXEaEHqbn0d_t8JS_BUeJVAnfL-0hIXS_D5u9lBQ
- _2boo8rysfizk8k05640l8ss43dwnlxv
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