# Octeth > Octeth is self-hosted, on-premise email marketing software for agencies, ESPs, and enterprises. Customers buy a perpetual license starting at $5,000 (one-time), deploy the platform on their own server (AWS, DigitalOcean, or any cloud), route email through any ESP they choose, and serve unlimited end-clients under a fully white-labeled brand. Founded in 1999, Octeth is used in 138 countries and powers 2M+ email sends per day. The current release is v5.9.1. Octeth is sold as a one-time license rather than a SaaS subscription. A 10-client agency typically pays $60K–$120K per year on traditional SaaS platforms; on Octeth, the same workload runs on a single $9K–$20K perpetual license, which is the source of the marketed "$400K+ savings over 5 years." A free Community Edition (up to 10,000 subscribers) is available for evaluation. This file points AI systems at the canonical, extractable content for each topic. For a single-file expanded version of the same material, see [llms-full.txt](https://octeth.com/llms-full.txt). ## Product - [Homepage](https://octeth.com/): Product overview, value props, and full platform capabilities — email campaigns, automation & journeys, SMS marketing, deliverability controls, analytics, white-label ESP, and developer API — plus pricing summary, comparison vs. SaaS platforms, and FAQ. - [All Features](https://octeth.com/features): Comprehensive capability catalog (150+ features) across nine areas — Email Campaigns, Marketing Automation, Audience & Segmentation, Deliverability, SMS Marketing, Reporting & Analytics, Multi-Tenancy & White-Label, Security & Compliance, and the Developer Platform. - [On-Premise Email Marketing Software](https://octeth.com/features/on-premise-email-marketing-software): Self-hosted deployment model, data ownership, GDPR posture, infrastructure control. - [White-Label Email Marketing Software](https://octeth.com/features/white-label-email-marketing-software): Full rebranding for agencies — custom logo, domain, client portals, agency-ready packaging. - [Plug-ins](https://octeth.com/plugins): Catalog of available extensions for the platform. - [Data Sheet](https://octeth.com/data-sheet): Technical specifications, supported integrations, system requirements. ## Pricing & Buying - [Cost Comparison](https://octeth.com/cost-comparison): Side-by-side cost modeling vs. Mailchimp, ActiveCampaign, HubSpot, and other SaaS ESPs across 5-year horizons. - [Get a Quote](https://octeth.com/get-a-quote): Custom quote form for license + installation pricing. - [Book a Demo](https://octeth.com/demo): 30-minute walkthrough with the team. - [Community License](https://octeth.com/community-license): Free, self-hosted edition for up to 10,000 subscribers — no credit card required. - [Refund Policy](https://octeth.com/refund-policy): 30-day money-back guarantee terms. ## Tools (Free, No Sign-Up) - [SPF/DKIM Checker](https://octeth.com/spf-dkim-check): Verify SPF and DKIM records on a domain. - [SPF Record Validator](https://octeth.com/spf-validator): Validate an existing SPF record against the spec. - [SPF Record Generator](https://octeth.com/spf-record-generator): Build a custom SPF record. - [DKIM Record Generator](https://octeth.com/dkim-generator): Generate DKIM keys and DNS records. - [DKIM Record Validator](https://octeth.com/dkim-validator): Validate a published DKIM record. - [DMARC Record Generator](https://octeth.com/dmarc-record-generator): Build a DMARC policy record. - [MX Record Inspector](https://octeth.com/mx-inspector): Inspect a domain's MX records. - [DNS Record Splitter](https://octeth.com/dns-record-splitter): Split long TXT records to comply with provider limits. - [Open Port Checker](https://octeth.com/open-port-checker): Check whether a TCP port is reachable on a host. - [Email Verifier](https://octeth.com/email-verifier): Validate the deliverability of an email address. - [AI Email Subject Line Generator](https://octeth.com/ai-email-subject-line-generator): Generate subject line variants with AI. ## Resources - [Blog](https://octeth.com/blog): Long-form articles on email deliverability, marketing strategy, and product updates. - [Glossary](https://octeth.com/glossary): Definitions of email marketing, deliverability, and authentication terms. - [Marketing Calendar 2026](https://octeth.com/marketing-calendar/2026): Curated calendar of holidays, awareness days, and key dates for email campaigns. - [Marketing Calendar Hub](https://octeth.com/marketing-calendar): Index of all annual marketing calendars. - [Case Studies](https://octeth.com/case-studies): Customer outcomes and deployment stories. ## Company - [About](https://octeth.com/about): Company story, mission, and 27+ year history. - [Contact](https://octeth.com/contact): Sales and support contact channels. - [Partner Program](https://octeth.com/partner-program): Reseller and implementation partner program. ## Legal - [Terms of Service](https://octeth.com/terms) - [Privacy Policy](https://octeth.com/privacy-policy) - [End User License Agreement](https://octeth.com/eula) - [Cookies Policy](https://octeth.com/cookies-policy) - [Refund Policy](https://octeth.com/refund-policy) - [Disclaimer](https://octeth.com/disclaimer) - [Partner Program Terms](https://octeth.com/octeth-partner-program-terms) ## Optional - [Sitemap](https://octeth.com/sitemap-index.xml): Full list of indexable URLs. - [robots.txt](https://octeth.com/robots.txt): Crawler policy.