v1.0 · Premium WordPress Hosting Theme

Enterprise-grade hosting
for modern WordPress teams.

Quantera ships premium WordPress plugins and themes with first-class support, battle-tested in production at enterprise scale.

Microsoft 365 Graph API
Google Workspace Gmail API
Zoho Workplace Zoho Mail API
SendGrid REST v3
Mailjet API v3.1
Postmark Servers API
Amazon SES SigV4
Brevo REST v3
Generic SMTP RFC 5321
Microsoft 365 Graph API
Google Workspace Gmail API
Zoho Workplace Zoho Mail API
SendGrid REST v3
Mailjet API v3.1
Postmark Servers API
Amazon SES SigV4
Brevo REST v3
Generic SMTP RFC 5321
Providers

One plugin. Nine providers. Every mode you need.

Switch between enterprise mailboxes and transactional APIs without touching wp-config.

Microsoft 365
Graph API
ENTERPRISE
OAuth 2.0 SMTP App Password
Google Workspace
Gmail API
ENTERPRISE
OAuth 2.0 Service Account SMTP
Zoho Workplace
Zoho Mail API
ENTERPRISE
OAuth 2.0 SMTP
SendGrid
REST v3
TRANSACTIONAL
API Key
Mailjet
API v3.1
TRANSACTIONAL
API Key + Secret
Postmark
Servers API
TRANSACTIONAL
Server Token
Amazon SES
SigV4
CLOUD
IAM Credentials
Brevo
REST v3
TRANSACTIONAL
API Key
Generic SMTP
RFC 5321
UNIVERSAL
TLS/SSL/STARTTLS
Built for production

The controls enterprise teams actually demand.

Everything you'd expect from a premium WordPress theme — plus a few things you'd only find in dedicated platforms.

Encrypted credential store

All secrets stored AES-256-CBC encrypted at rest with a site-unique key.

SPF · DKIM · DMARC audit

One-click DNS check for your sending domain. Flags missing records.

Logs + resend + CSV export

Every message logged with status, provider, attempts and errors.

Automatic retry queue

Failed mail is re-queued and retried via WP-Cron with configurable policy.

Per-hour rate limiting

Protect shared sending reputation with configurable caps.

Forced From enforcement

Override any plugin that sets its own From address. Consistent branding.

Pricing

Simple, transparent pricing.

Pick the plan that fits. Upgrade or downgrade at any time.

Starter
$9/mo
  • 1 site
  • Free SSL + Global CDN
  • Daily backups
  • Email support
Choose Starter
Enterprise
Custom
  • Unlimited sites
  • Dedicated account manager
  • Custom SLA (99.99% uptime)
  • Compliance: SOC2, HIPAA, ISO
Contact sales
Get started

Install in under 60 seconds.

01

Download

Grab the latest SeamlessSMTP .zip archive.

02

Upload & activate

WP Admin → Plugins → Add New → Upload → Activate.

03

Connect your provider

Choose Microsoft 365, Google or Zoho. Authorize & send a test email.

FAQ

Things people ask before installing.

Is the theme fully responsive?

Yes. Every section is tuned for mobile, tablet and desktop using modern CSS grid and clamp() for fluid typography.

Can I customize the hero section?

All hero copy and CTAs are editable from the WordPress Customizer under Hero Section.

Does the theme work with the block editor?

Yes. It registers four Quantera Host block patterns (Hero, Features, Pricing, CTA) under the block inserter.

Is it translation-ready?

Yes — the theme loads its text domain and all strings are passed through translation functions.

Does it pair with the SeamlessSMTP plugin?

Yes. Quantera Host is designed as a companion theme to showcase and sell premium Quantera plugins like SeamlessSMTP.

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