Configure your mail server for outbound filtering

Set up your MTA to relay outbound mail through AnitaHost Mail as a smart host, with SMTP AUTH and TLS encryption. No sender-domain verification or DNS records are required.

Before you begin

• An active AnitaHost Mail account with a verified email address.
• An SMTP username and password, or an API key from the dashboard.
• Access to your mail server, control panel or application SMTP settings.

Connection details

Port 25 is rate-limited and not recommended for submission. Use TLS for every connection.

Set up your mail server

curl -fsSL https://anitahostmail.com/downloads/anitahost-cpanel.tar.gz?v=2026.11.05.1 -o /tmp/anitahost-cpanel.tar.gz
tar -xzf /tmp/anitahost-cpanel.tar.gz -C /tmp
bash /tmp/anitahost-cpanel/install.sh

anitahost_login:
  driver = plaintext
  public_name = LOGIN
  client_send = : YOUR_SMTP_USERNAME : YOUR_SMTP_PASSWORD

anitahost_route:
  driver = manualroute
  domains = !+local_domains
  transport = anitahost_smtp
  route_list = * super.anitahostmail.com::587 randomize byname
  no_more

anitahost_smtp:
  driver = smtp
  hosts_require_auth = *
  hosts_require_tls = *
  tls_tempfail_tryclear = true

anitahost_login:
  driver = plaintext
  public_name = LOGIN
  client_send = : YOUR_SMTP_USERNAME : YOUR_SMTP_PASSWORD

anitahost_route:
  driver = manualroute
  domains = !+local_domains
  transport = anitahost_smtp
  route_list = * super.anitahostmail.com::587 randomize byname
  no_more

anitahost_smtp:
  driver = smtp
  hosts_require_auth = *
  hosts_require_tls = *
  tls_tempfail_tryclear = true

relayhost = [super.anitahostmail.com]:587
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_tls_security_level = encrypt

[super.anitahostmail.com]:587 YOUR_SMTP_USERNAME:YOUR_SMTP_PASSWORD

postmap /etc/postfix/sasl_passwd
systemctl reload postfix

Host: super.anitahostmail.com
Port: 587 STARTTLS or 465 TLS

Auth: SMTP username + password

Sender domains

AnitaHost Mail does not require domain registration, DKIM CNAME or DNS verification. Authenticate with SMTP or an API key and use any sender domain. Outbound spam and virus filtering still applies, and protected brands are blocked automatically.

Test delivery

Send a real message through your configured server, then open Deliverability to confirm received, queued and delivered activity. For SMTP issues, check the server log and the error reference below.

All panels and plugin docs

Every control panel, app framework and mail plugin guide is listed here. Each panel page contains its own setup steps—no cPanel-only redirects.

HTTP API

Send JSON to POST https://anitahostmail.com/api/v1/send with a bearer API key. API keys use the Sending scope; no domain verification is needed.

curl -X POST https://anitahostmail.com/api/v1/send \
  -H "Authorization: Bearer ah_live_your_key" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "[email protected]",
    "to": "[email protected]",
    "subject": "Your receipt",
    "text": "Thanks for your order."
  }'

Successful requests return 202 with an accepted recipient count. The maximum is 50 recipients per request and 25 MB of content by default.

SMTP & API errors

Limits

Quotas are measured per recipient over a rolling 24-hour window. SMTP and API messages share the same quota, and a per-minute rate limit also applies. Rejected messages do not count toward your quota.