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Mercury as an SMTP Relay to another server ?

Last post 03-28-2010, 17:52 by Thomas R. Stephenson. 1 replies.
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  •  03-28-2010, 17:27

    • Jexx is not online. Last active: 03-28-2010, 17:27 Jexx
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    Mercury as an SMTP Relay to another server ?

    Hi

    Can mercury be configured to retrieve email ad then spool it to another mail server ?

    This way the mail can be processed through mercury's content, transaction and spam filtering before being passed to another server.

    Is that possible ?
  •  03-28-2010, 17:52

    Re: Mercury as an SMTP Relay to another server ?

    > Can mercury be configured to retrieve email ad then spool it to another mail server ?

    Yes.

    > This way the mail can be processed through mercury's content, transaction and spam filtering before being passed
    > to another server.

    Yes.

    >
    > Is that possible ?

    You are talking about Mercury/32 as a MX host. Mercury/32 currently does not provide MX services.  David's looking into this for a future enhancement but until that happens here's 3 possible work arounds.   

    These are NOT a true MX host function since it does not queue and wait for the receiving system to be online to send the mail.  That said, WSMTPEx will keep retrying if the connection to the server and port cannot be made.  I have not tested how long it will continue retrying.   

    1.  First of all is the simplest, you simply re-write the domain in the mercury.ini [Rewrite] section.

    [Rewrite]
    none-tstephenson.com: [192.168.1.3]

    I really was surprised when this one worked since it truly simple and has been there
    all along.  You learn something new every day.  The brackets are required when using
    an IP address.  This forwards all mail for anyuser@none-stephenson.com to
    anyuser@[192.168.1.3] using the normal Mercury/32 send process via port 25. 
    Works quite well when using MercuryE, cannot work when using MercuryC unless the
    IP address is a routable IP address.  You must re-boot Mercury/32 for each change
    since this is only read at startup.  

    2.  The second one is the daemon MercFwd and it essentially does the same thing as
    the rewrite but this can be done dynamically by changing the domains section.  The
    [Domains] entry of  

    daemon:c:\mercury\mercfwd.dll;[192.168.1.3]: none-tstephenson.com

    does essentially the same thing as the rewrite above.  Again it uses Mercury to deliver
    the mail via port 25 and so you cannot use this with MercuryC when using non-
    routable IP addresses.  

    3.  The third one is the program WSMTPEx.exe (SMTPEX.NLM for Netware)  and this a a
    separate program that takes mail for a email account and forwards it to any port and
    any hostname/IP address.  I use this with my domains to forward the mail to a Linux
    system (must use high ports as non-root) and to a second instance of Mercury/32
    running on my system (can't share port 25)  Here's a sample of the ini file I use for
    forwarding all mail to Mercury/32 running on Ubuntu v8.10 and Wine.  

     #  You can rename this tool, but name of following section must remain [WSMTPEx]
    [WSMTPEx]
    Version=0.10
    #  TCP port, on which SMTP server listens
    Port=8025
    #  Number of seconds to delay between searches for emails
    LoopDelay=30
    #  Folder, under which is most of user's mailboxes
    UserFolder=
    Domains=1
    # Users mail address domain part
    Domain1=linux-tstephenson.com
    LogName=c:\Mercury\WSMTPEx.log
    SMTPServer=192.168.1.4
    MailBoxes=1
    Badmails=c:\pmail\mail\BadMail

    [linux-tstephenson.com]
    # When user name start with "DM:", WSMTPEx will try to find SMTP envelope address in mail file
    Mb1addr=dm:ubunto
    Mb1dir=c:\pmail\mail\ubunto


    This takes all the mail in the domain account "UBUNTO"  and sends it to port 8025 on
    192.168.1.4 to be received by MercuryS.  The directory BADMAIL I have specified
    must exist.  You can run multiple instances of this tool and and it can be run as a
    service.  If run as a service and running multiple instances the name of the program
    should be changed.  I use WSE-UBUNTO to rename the program and ini file for this
    one.  

    Many thanks to Petr Jaklin for the development of these tools.  You can get these
    tools at the community download areas or directly from Petr Jaklin's site
    http://www.3net.cz/software/softe.htm  



    Thomas R. Stephenson
    San Jose, California
    Member of Pegasus Mail Support Team

    I do not answer private messages from the forum. If you want to contact me use email to techsupp@tstephenson.com.
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