Exim force NON-TLS for a certain relay host

eximtls

I have to relay mail to a certain host that advertises TLS but the remote host falls over. How can I add something to my router that forces the router not to use TLS. This is my route

send_to_gateway:
    driver = manualroute
    domains = ! +relay_to_domains
    transport = remote_smtp
    route_list = * smtp.example.com
    no_more

Best Answer

That can be done at the transport level, add this to your remote_smtp

hosts_avoid_tls = ip_of_smtp_example_com

Related Solutions

Exim force TLS for specific destination domain

you can use the recipient ACL and use the encrypted condition, see here.

deny
    domains = secure.mail.org
    ! encrypted = *

EDIT

To force sending encrypted mail to some domains, you can create a "required tls" transport (specifying host_require_tls), and then create a router for the domains you want, e.g (untested):

begin router

tls_router:
    driver = accept
    domains = secure.mail.com
    transport = tls_smtp

begin transport

tls_smtp:
    driver = smtp
    hosts_require_tls = *

Exim4 Smart Host Relay

Use a conditional like

route_list = * "${if match{$header_from:}{\N.*\.a\.com$\N} {mail.a.com}}"

domains = only checks the destination domain not the source domain.

Best Answer

Related Solutions

Exim force TLS for specific destination domain

Exim4 Smart Host Relay

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