|
drweb-zmailer module is compatible only with ZMailer v. 2.99.55 or later. |
Dr.Web MailD can interact with ZMailer in two modes:
•As a content filter at the stage of SMTP-connection.
Advantages: it is possible to block the message at the stage of SMTP-connection.
Disadvantages: decreased performance when system load is high, only SMTP traffic is checked.
•As a content filter at the routing stage.
Advantages: stable performance when system load is high; all mail coming through ZMailer is checked (including local mail and mail transferred via UUCP protocol).
Disadvantages: message cannot be blocked when it is received (i.e., reject and tempfail actions are similar to discard); usage of SecureHash is necessary to increase performance and avoid cycling of messages.
drweb-zmailer module is used as Receiver component of Dr.Web MailD when interacting with ZMailer.
To assure proper operation of drweb-zmailer and filters it is recommended to install patches (if possible).
To install patches, do the following:
•Open the directory,
$(ZMAILER_SRCHOME)/smtpserver
where ZMAILER_SRCHOME is the path to the directory with ZMailer binaries
•Run the following command:
$ patch < smtpdata.c.XXX.patch
where XXX stands for the version of Zmailer to be patched.
When Dr.Web MailD is interacting with Zmailer system, the following modules must be running in the system (this is specified in mmc file of the Dr.Web Monitor):
•drweb-notifier
•drweb-sender
•drweb-maild