I will like to add some type of support for external backup emails.
went you send a email from one server and the mail server is not
responding, you can send to the MX backup email in a priority order like
MX 5 MX10 MX100, after the some time the mail backup server will send
you the mail back to you...
the mail issue is, on the default config a new file
30_exim4-config_check_rcpt
.ifdef _HAVE_SPF
deny
!acl = acl_local_deny_exceptions
spf = fail
message = [SPF] $sender_host_address is not allowed to send mail from \
${if def:sender_address_domain
{$sender_address_domain}{$sender_helo_name}}.
log_message = SPF check failed.
By default is deny the email..
Will be great if we enable some file like: /etc/exim4/trustedmailhosts
in order to bypass this rule and allow send the mail back from the MX
backup without check the SPF
My proposal will be like:
.ifdef CHECK_RCPT_SPF
.ifdef _HAVE_SPF
deny
!acl = acl_local_deny_exceptions
!condition = ${if
match_ip{$sender_host_address}{iplsearch;/etc/exim4/trustedmailhosts}{1}{0}}
spf = fail
message = [SPF] $sender_host_address is not allowed to send mail from \
${if def:sender_address_domain
{$sender_address_domain}{$sender_helo_name}}.
log_message = SPF check failed.
defer
!acl = acl_local_deny_exceptions
spf = temperror
message = Temporary DNS error while checking SPF record. Try again
later.
warn
I am not a expert on exim rules, maybe there is other way to do it.
Regards!
On 2026-02-04 19:53, Andreas Metzler wrote:
On 2026-02-04 Eduardo Diaz Rodriguez via
Pkg-exim4-maintainers<[email protected]> wrote:
Package: exim4-config
Version: 4.96-15+deb12u7
Severity: normal
-- Package-specific info:
Exim version 4.96 #2 built 22-Mar-2025 10:25:14
[... and nothing else ]
I am at loss. What is this report about?
cu Andreas
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