I am using exim for outgoing mails. For SMTP authenticated users, I have already added several ACLs and want to add another one allowing suffix aliases. Suffix aliases are email addresses such as "[email protected]".
The environment looks as follows:
- The username (full email address) is stored in
$authenticated_id
- The set FROM address is stored in
$sender_address
- The "user" in "[email protected]" can be found in
${local_part:$authenticated_id}
- The domain name of the authenticated user is in
${domain:$authenticated_id}
Now I want to achieve an ACL rule that looks as follows:
# accept if FROM address is a suffix alias of authenticated address
accept
condition = ${if match {$sender_address} {${local_part:$authenticated_id}+{*}@${domain:$authenticated_id}} }
logwrite = AUTH OK - FROM address $sender_address is a suffix alias of authenticated user
Unfortunately, the ACL rule seems to not be correct. I am receiving the following error message:
failed to expand ACL string "${if match {$sender_address} {${local_part:$authenticated_id}+{*}@${domain:$authenticated_id}} }": curly-bracket problem in conditional yes/no parsing: 'yes' part did not start with '{'
Q: What's the problem with the above condition, and what would a correct condition to achieve this look like?