[BlueOnyx:22353] Re: Smart Relay on port 587

[Colin Jack]

Replying to my own email because I have got it working (with help from an email from Michael last year).
I'm posting this so that if anybody wants to do this these instructions will help.

1. Edit */etc/sendmail.mc* and add the following line at the top under the "divert(-1)dnl" line:

define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl

2. Rebuild sendmail.cf and restart sendmail using the following commands:

cd /etc/mail
make all

3. Add the Smart Relay FQDN using the GUI: "Network Services" /
"Email", "Advanced"-tab and then "Smart Relay Server".

4. Protect the sendmail.mc file to avoid it being overwritten:

chattr +i /etc/mail/sendmail.mc

Job done!


-----Original Message-----
From: Blueonyx <blueonyx-bounces at mail.blueonyx.it> on behalf of Colin Jack <colin at mainline.co.uk>
Reply-To: BlueOnyx General Mailing List <blueonyx at mail.blueonyx.it>
Date: Tuesday, 28 August 2018 at 17:21
To: BlueOnyx General Mailing List <blueonyx at mail.blueonyx.it>
Subject: [BlueOnyx:22352] Smart Relay on port 587

    We have a client who wants to relay their outbound mail via a 3rd party Smart Relay on port 587.
    There is nothing in the GUI to allow this - authenticated smart relay.
    
    Plenty of info on the net about editing sendmail.mc to do this but with BX this would get overwritten?
    
    What would be the best way forward?
    
    Thanks
    
    Colin
    
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