Liquid Web is a managed VPS, dedicated, and cloud hosting provider now operating under CloudOne Digital (One Equity Partners), founded by Matt Hill in Lansing, Michigan. The company runs two distinct product lines with meaningfully different email behavior: VPS and dedicated plans with cPanel, and Managed WordPress (the former Nexcess product line, rebranded under the Liquid Web name in 2025).
On VPS and dedicated plans with cPanel, email hosting is bundled without restriction: unlimited mailboxes, open SMTP ports (25, 465, and 587), no published per-hour sending cap. On Managed WordPress, the platform handles wp_mail() through its own relay and includes basic email with every plan — a feature added in the 2025 plan revamp. Premium Business Email is available as an add-on for operators who need a full-featured hosted mailbox suite.
Managed WordPress (formerly Nexcess) starts at $19/month. Managed VPS starts at $36/month.
Email on Liquid Web
How wp_mail works by default
Liquid Web’s two product lines behave differently, and the right answer depends on which one is in use.
On VPS and dedicated plans with cPanel: WordPress sends wp_mail() through PHP’s mail() function, which goes through the server’s local MTA (Exim or Postfix, depending on configuration). Port 25 is open. With correct DNS — an SPF record (the DNS record that lists which mail servers are authorised to send on the domain’s behalf), a DKIM key, and proper PTR/reverse-DNS configuration — this setup delivers reliably. The key difference from shared hosting: a VPS or dedicated server has its own IP address, so reputation is not shared with thousands of other sites. Operators who configure DNS correctly from day one typically see password resets and A transactional email is the automated message a WordPress site sends in response to a single user action – a password reset, an order confirmation, a form receipt – addressed to the user who triggered it. Read full reference → deliver without a plugin.
On Managed WordPress (formerly Nexcess): The platform routes outbound email through its own relay. The operator does not configure this; wp_mail() goes through the platform relay by default. The 2025 plan revamp added "basic email" as a bundled feature, meaning domain-level email accounts are now included. For operators who need per-message delivery events, bounce tracking, or a known relay IP reputation, an SMTP plugin pointed at a third-party relay still makes sense.
Outbound SMTP port status
On VPS/dedicated: Ports 25, 465, and 587 are all open. No external-SMTP restriction applies. Operators can connect any SMTP plugin to any relay provider using any standard port.
On Managed WordPress: External SMTP plugins are supported. Ports 587 and 465 are available for relay connections. Port 25 outbound is managed by the platform relay and not typically exposed for external configuration in the same way as a VPS.
| Port | VPS/Dedicated | Managed WordPress |
|---|---|---|
| 25 | Open | Platform-managed |
| 465 | Open | Open for SMTP plugin |
| 587 | Open | Open for SMTP plugin |
Sending limits
On VPS/dedicated: No strict hourly or daily sending limit is documented. Sending is abuse-monitored — the platform will intervene if a server is used as a spam source, but there is no published per-hour cap of the kind applied to shared hosting accounts (100/hour, 300/hour, etc.). Operators running high-volume transactional email from a VPS manage their own throughput.
On Managed WordPress: No per-hour cap is documented for the platform relay. The "basic email" feature included in the 2025 plan update does not publish a sending limit in the primary-source announcement. Operators running WooCommerce order confirmations at volume should verify current relay limits or route through a dedicated service.
Mailboxes, forwarding, DNS
On VPS/dedicated with cPanel: Full cPanel email hosting — unlimited mailboxes, IMAP, POP3, SMTP access, webmail (Roundcube or Horde), email forwarders, catch-all addresses, mailing lists. Liquid Web’s managed VPS plans include cPanel license as part of the managed service. DNS is fully managed through the Liquid Web DNS panel; SPF, DKIM, and DMARC records are all configurable.
On Managed WordPress: Basic email accounts are bundled (added in the 2025 plan revamp). Full cPanel email suite features — including complex forwarder rules and mailing list management — are not documented as part of the Managed WordPress platform. Operators who need a full-featured email hosting environment should consider Premium Business Email as an add-on, or use a separate provider (Google Workspace, Microsoft 365).
Premium Business Email is an add-on available across both product lines. It provides dedicated hosted mailboxes with spam filtering, webmail, and mobile sync via ActiveSync, managed separately from the hosting plan.
Authentication (SPF, DKIM, DMARC)
On VPS/dedicated: cPanel’s Email Deliverability tool generates and installs SPF and DKIM records. DMARC is added manually via the DNS zone editor. The full authentication suite — SPF, DKIM signing, and DMARC reporting — is available without a third-party service. VPS operators who configure DNS correctly from day one avoid the deliverability issues that affect shared hosting with pooled IP addresses.
On Managed WordPress: SPF and DKIM configuration for the platform relay are managed through the DNS panel. For operators adding a third-party relay via plugin, the relay provider’s SPF include and DKIM setup apply. DMARC is configured via the DNS panel; a monitoring policy (v=DMARC1; p=none; rua=mailto:reports@<domain>) is the standard starting point.
The Premium Business Email add-on has its own SPF and DKIM configuration; Liquid Web’s documentation covers this at the DNS setup reference above.
What Liquid Web does not provide
A uniform email experience across product lines. VPS/dedicated and Managed WordPress have different email capabilities. An operator comparing the two primarily on email will find material differences in mailbox control, MTA access, and sending architecture. The plan name alone does not determine the email feature set.
Bundled transactional email analytics. Neither the VPS/dedicated local MTA nor the Managed WordPress platform relay provides per-message delivery events, bounce dashboards, or engagement tracking. Delivery visibility requires either a third-party relay with an API plugin or the Premium Business Email add-on (which handles hosted mailboxes, not necessarily transactional WordPress email).
Uniform DMARC enforcement support. Full DMARC enforcement (p=quarantine or p=reject) requires both the outbound relay and any hosted email to align on SPF and DKIM. The VPS/dedicated path supports this natively; the Managed WordPress platform relay path requires confirming the relay’s DKIM signing behaviour.
When a third-party relay is needed
VPS/dedicated operators with correctly configured DNS, a clean IP, and low to moderate volume typically do not need a third-party relay. The local MTA on Liquid Web’s managed VPS performs well for the typical WordPress transactional email load. Add Postmark, SMTP2GO, or Mailgun when delivery analytics, bounce handling, or dedicated IP reputation management become requirements — generally at higher volume or for WooCommerce stores where missed order emails have revenue impact.
Managed WordPress operators should evaluate whether the platform relay provides sufficient delivery visibility. For WooCommerce stores at meaningful volume, routing through a dedicated relay via WP Mail SMTP or FluentSMTP is the lower-risk configuration. The platform relay handles the default case; it is not a dedicated transactional email service.
Going the other way, sites following the WordPress without the plugin minimum-stack pattern can stay on Liquid Web’s platform relay (Managed WordPress) or local MTA (VPS) without installing an SMTP plugin at all; the bundled sending is what makes that no-plugin slice viable here.
Verdict
Liquid Web is the managed hosting option where the email story splits depending on which product line is in use. VPS and dedicated operators get the most complete self-managed email capability available in managed hosting: open SMTP ports, no sending caps, full cPanel tools, and DNS-level control. Managed WordPress operators get a functional default relay and basic email, with a clear upgrade path to Premium Business Email or a third-party relay for higher-volume transactional needs.
For the WordPress email setup that supplements Liquid Web’s default path, see how to configure WordPress email.