generated: '2026-08-13'
method: searched
source: https://developers.mailersend.com/general
notes: >-
  MailerSend runs a single, unversioned-beyond-v1 API. There is no published deprecation policy, no
  Sunset/Deprecation header support documented (RFC 8594), no dated changelog on the developer host, and
  no published SLA document reachable in this pass. What it does publish is a real status page and a
  documented maintenance-mode contract, which is the operational transparency it actually has.
versioning:
  scheme: uri-path
  current: v1
  base_url: https://api.mailersend.com/v1
  docs: https://developers.mailersend.com/general
deprecation:
  policy_url: null
  sunset_header: false
  deprecation_header: false
  note: >-
    No deprecation or sunset policy is published on developers.mailersend.com, and no operation in the
    captured OpenAPI is marked deprecated. Recorded as absent, not assumed.
sla:
  url: null
  uptime_target: null
  note: >-
    No SLA document was reachable. MailerSend's SLA/legal pages live on www.mailersend.com, which returned
    HTTP 429 behind a Cloudflare bot challenge to every automated request in this pass.
status_page:
  url: https://status.mailersend.com/
  provider: incident.io
  api: https://status.mailersend.com/api/v2/summary.json
  feeds:
    - https://status.mailersend.com/feed.atom
    - https://status.mailersend.com/feed.rss
    - https://status.mailersend.com/history.rss
  components:
    - Email sending API
    - Bulk endpoint
    - SMTP
    - Email analytics
    - Email activity
    - Inbound routing
    - Delivery time
    - Deliverability rate
    - MailerSend APP
    - Website
  observed:
    fetched: '2026-08-13'
    http_status: 200
    indicator: none
    description: All Systems Operational
maintenance:
  documented: true
  docs: https://developers.mailersend.com/guides/handling-maintenance-modes
  http_status: 421
  events: [maintenance.start, maintenance.end]
  note: >-
    MailerSend signals planned maintenance both in-band (HTTP 421 with a "Service isn't available, try
    again later" body) and out-of-band (maintenance.start / maintenance.end webhooks), which is a stronger
    runtime contract than most providers ship.
changelog:
  url: null
  note: >-
    No changelog page exists on developers.mailersend.com (the sitemap lists 42 URLs, none of them a
    changelog) and /changelog returns 404. Product release notes, if any, live on the marketing host,
    which was unreachable.
deprecated_operations: []