MTA-STS
Mail Transfer Agent Strict Transport Security for all Caventis domains routed through Microsoft 365.
- Status
- ✓ MTA-STS enabled
- Policy mode
- enforce
- Mail routing
- Microsoft 365 (Exchange Online)
- Policy file path
- https://mta-sts.<domain>/.well-known/mta-sts.txt
Shared policy contents
All domains share the same policy because they all route mail through Microsoft 365.
version: STSv1
mode: enforce
mx: *.mail.protection.outlook.com
max_age: 86400Required DNS for each domain
For every domain below, add the same two records at the registrar, then addmta-sts.<domain>as a custom domain in Lovable so the policy file is served over HTTPS.
| Type | Host | Value |
|---|---|---|
| A | mta-sts | 185.158.133.1 |
| TXT | _mta-sts | v=STSv1; id=20260617T000000; |
DNS propagation checker
Live lookup via Cloudflare DNS for all 10 domains.
caventis.co
mta-sts.caventis.co
PendingA record
_mta-sts.caventis.co
PendingTXT record
caventis.co.uk
mta-sts.caventis.co.uk
PendingA record
_mta-sts.caventis.co.uk
PendingTXT record
caventis.biz
mta-sts.caventis.biz
PendingA record
_mta-sts.caventis.biz
PendingTXT record
caventis.net
mta-sts.caventis.net
PendingA record
_mta-sts.caventis.net
PendingTXT record
caventis.ltd
mta-sts.caventis.ltd
PendingA record
_mta-sts.caventis.ltd
PendingTXT record
caventis.consulting
mta-sts.caventis.consulting
PendingA record
_mta-sts.caventis.consulting
PendingTXT record
caventisconsulting.co
mta-sts.caventisconsulting.co
PendingA record
_mta-sts.caventisconsulting.co
PendingTXT record
caventisconsulting.com
mta-sts.caventisconsulting.com
PendingA record
_mta-sts.caventisconsulting.com
PendingTXT record
caventisconsulting.net
mta-sts.caventisconsulting.net
PendingA record
_mta-sts.caventisconsulting.net
PendingTXT record
caventisadvisory.com
mta-sts.caventisadvisory.com
PendingA record
_mta-sts.caventisadvisory.com
PendingTXT record