CRM

Close

Inside-sales CRM with email sequences.

Visit Close Start free with MailKite

Email capabilities

  • Own email API
  • Accepts SMTP
  • Sends notifications
  • Webhooks

Connection methods

  • SMTP
  • API

Close is an inside-sales CRM with built-in email sending for outreach sequences, plus SMTP/IMAP sync and webhooks.

Connect Close to MailKite

Send Close email sequences through MailKite's SMTP relay for deliverability.

Point Close at MailKite's SMTP relay

A minimal, copy-paste starter. Swap in your own domain and API key.

.env 
# Any app that accepts an SMTP server works with MailKite
MAIL_HOST=smtp.mailkite.dev
MAIL_PORT=587                # STARTTLS (or 465 for TLS)
MAIL_ENCRYPTION=tls
MAIL_USERNAME=mailkite       # username is ignored
MAIL_PASSWORD=mk_live_...    # your MailKite API key
MAIL_FROM_ADDRESS=you@yourdomain.com   # on a verified domain
MAIL_FROM_NAME=Close
Read the SMTP relay reference
Email tools

Commonly paired with Close

MailKite

Connect Close to MailKite today

Point a domain, set one SMTP endpoint, send your first email in minutes. Unlimited domains, no credit card.

Start building free All integrations