ETRN Download

Short for Extended Turn, ETRN is an extension to the SMTP mail delivery protocol that allows an SMTP server to request from another SMTP server any e-mail messages it has for a specific domain. ETRN is typically used by a mail server that does not have a dedicated connection to the Internet.

The ETRN download node lets you to define ETRN or ATRN client requests to remote mail servers, allowing you to have IceWarp Server pick up messages held on other servers.

Multiple downloads can be defined and message collection(s) can be scheduled.

ETRN Download - List

The Delete button is used to delete a selected download definition.

The Schedule button allows you to define a schedule for downloads.

The Download Now button allows to start a manual connection and collection of mail.

The Add and Edit buttons open the ETRN / ATRN Item dialog, allowing you to add or modify a downloads definition.

ETRN Download - Edit Item

Field	Description
Description	A description of this download so you can identify it.
Hostname	Specifies the full hostname or IP address of the remote mail server including the port if required.
Parameters	Specifies the parameters to be sent in the ETRN or ATRN command. This is usually the domain name, and possibly a password for password protected ETRN domains. You should consult the documentation for the server you are collecting from for the complete parameter requirements.
ATRN	The default mode for collecting messages is ETRN. If the server you are collecting from requires ATRN (Authenticated Turn) then you should check this box and specify the parameters accordingly. The usual parameter requirement for ATRN is domain.com;userid:password