All integrations Hosting

Plesk + MailKite

Plesk is a popular web hosting control panel. Configure its mail server to relay through MailKite and every notification goes out over your own DKIM-signed domain.

What you need

A verified domain with SPF + DKIM published
Your API key (mk_live_…)
Plesk admin access

Configure SMTP

Log into Plesk and navigate to Tools & Settings → Mail Server Settings. Under the SMTP Relay section, enable relay and enter the MailKite credentials.

SMTP Host	`smtp.mailkite.dev`
SMTP Port	`587`
Encryption	TLS (STARTTLS)
Username	`mailkite`
Password	Your API key (`mk_live_…`)
From Address	`hello@yourdomain.com` (on a verified domain)

Tools & Settings → Mail Server Settings

# Tools & Settings → Mail Server Settings → SMTP Relay

Enable SMTP relay:      Yes
SMTP relay host:        smtp.mailkite.dev
SMTP relay port:        587
SMTP relay username:    mailkite
SMTP relay password:    mk_live_...

Test it

Send email from a Plesk email account or use the Plesk mail test tool to verify outbound delivery through MailKite.

Troubleshooting

Emails not sending — confirm the From address is on a verified domain.
535 Authentication failed — your password must be your mk_live_… API key, not a separate SMTP password.
Mail service disabled — ensure mail service is enabled for the domain. Go to Domains → yourdomain.com → Mail and verify it is active.

See the SMTP relay docs for the full connection reference, or all integrations for other platforms.