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Connection Strategies

In the console: Settings › MTA › Outbound › Connection Strategies

How outgoing connections are made: which local address and name to use, and timeouts. For specialists.

Connection Strategy

Name

Short identifier for the strategy.

Text. Set when it’s created; can’t be changed afterwards. Name in the API: name.

Description

Short description of the connection strategy.

Text. Name in the API: description.

EHLO Hostname

Overrides the EHLO hostname that will be used when connecting using this strategy.

Text. Name in the API: ehloHostname.

Timeouts

Connect

Maximum time to wait for the connection to be established.

A length of time. Default: 5m. Name in the API: connectTimeout.

Greeting

Maximum time to wait for the SMTP greeting message.

A length of time. Default: 5m. Name in the API: greetingTimeout.

EHLO

Maximum time to wait for the EHLO command response.

A length of time. Default: 5m. Name in the API: ehloTimeout.

MAIL-FROM

Maximum time to wait for the MAIL-FROM command response.

A length of time. Default: 5m. Name in the API: mailFromTimeout.

RCPT-TO

Maximum time to wait for the RCPT-TO command response.

A length of time. Default: 5m. Name in the API: rcptToTimeout.

DATA

Maximum time to wait for the DATA command response.

A length of time. Default: 10m. Name in the API: dataTimeout.

Source IP Addresses

Source IPs

List of local IPv4 and IPv6 addresses to use when delivering emails to remote SMTP servers.

A list, each with the settings in MTA connection IP host. Name in the API: sourceIps.