Recommended settings for a local SMTP forwarder
We recommend that you use the following settings for your SMTP forwarder:
Configure the dedicated IP address that Contactlab assigns to your stream as a smarthost
Ensures that every message will be forwarded to that address.
Set the timeout on the SMTP connection to at least 300 seconds
Limit the number of simultaneous outbound SMTP connections to eight
The limit is configurable. Please let us know your needs.
Set the number of messages sent in a single connection to a reasonable limit, for example, 100
We do not limit the number of messages delivered in a single connection, unless you require a specific setting. However, by doing this on your SMTP forwarder, you will usually help it manage its own outbound queue more smoothly.
You do not need to configure SMTP-AUTH
We use the IP address(es) that you provide to us to limit inbound traffic.
You do not need to setup DKIM signing
We sign your messages when delivering them to their destination.