[Pkg-exim4-users] configuring exim4 smtp to use SSL

[Gary Dale]

On 16/03/15 04:18 PM, Nick Guerette wrote:
> On 3/15/2015 8:20 PM, Gary Dale wrote:
>> I did add tls_on_connect_ports = 465 to exim4.conf.localmacros, which 
>> is supposed to cover the SSL on connect issue.
> The option tls_on_connect_ports is for incoming connections to your 
> server, from clients that do not support STARTTLS.  In order to enable 
> the use of TLS on connect, or "SMTPS" when sending outgoing messages 
> from your server through another SMTP server (smarthost) you need to 
> add the following to the remote_smtp_smarthost section of the exim4 
> config file template(s) - either /etc/exim4/exim4.conf.template or 
> /etc/exim4/conf.d/transport/30_exim4-config_remote_smtp_smarthost (in 
> my case, Debian Jessie; do not know if it's changed from Wheezy), and 
> regenerate the config file with dpkg-reconfigure:
>
>   protocol = smtps
>
> See the description of the "protocol" option here: 
> http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_smtp_transport.html
>
> This took me a day or two to figure out.  "SMTPS" was deprecated so 
> hard that port 465 was officially reassigned, but it seems common for 
> ISPs to still run SMTP servers that do not support STARTTLS.

I actually added that line days ago and it hasn't made any difference.