EnglishHi,
I need to configure SMTP for an email address in Mailcow to work with SuiteCRM. However, my concern is that SuiteCRM is not running inside a container; it is installed directly on a Linux system. Could you please suggest the best approach for setting up the SMTP configuration in this scenario?
It doesnt matter where your SuiteCRM runs. Just use the regular ports e.g. 25 (without authentication) or 587 (with authentication)
Define the IP address of the SuiteCRM host as “Forwarding host” in mailcow settings.
If needed (slow delivery) put the IP also on the 
postscreen whitelist docs.mailcow.email
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In the screenshot provided below i have the private IPs in the Server Name and Outgoing Server Name (SMTP) fields. For SMTP configuration in SuiteCRM do i need to use these private IPs or the domain name of the mail server.
I cannot tell, you should know how your network and your name resolution works internally. You need to use the IP address of mailcows host. Not the internal docker network addresses.
Are you sure you know how docker works?
OK. Got it. I will apply that and get back to you.
Configure SuiteCRM with Mailcow SMTP by entering Mailcow’s SMTP details in Admin → Email Settings (port 587 for TLS or 465 for SSL). Ensure Mailcow allows external relay by adding SuiteCRM’s server IP to mynetworks in Postfix. Alternatively, consider using SMTPget or iDealSMTP for better deliverability and easier setup.
otismilburn Email Settings (port 587 for TLS or 465 for SSL)
That only works for authenticated users. That is not a must. Port 25 with STARTTLS would also be fine.
otismilburn adding SuiteCRM’s server IP to mynetworks in Postfix
That is already mentioned in my first posting. Usually there is no need to fiddle with postfix config files directly.
