https://bugs.exim.org/show_bug.cgi?id=3178
Bug ID: 3178
Summary: unknown expansion operator "domain_data" ("domain"
does not take an _arg (change in behaviour)
Product: Exim
Version: 4.99
Hardware: x86
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Transports
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
I'm using Exim 4.99 from Fedora EPEL (on Rocky Linux 8), which was made
available in the last 24 hours.
Immediately upon upgrade, I started get deferred mails, with the following
error being repeatedly logged:
2025-11-14 06:12:24 1vJcRB-0000000BnXb-1VR7 == xxx.example.com
<[email protected]> R=lookuphost T=remote_smtp defer (-1): failed to expand
"interface" option for remote_smtp transport: unknown expansion operator
"domain_data" ("domain" does not take an _arg)
In my remote_smtp transport (driver is smtp), the "interface" option looks like
this:
interface = <;
${lookup{${domain_data:$sender_address}}lsearch*{/etc/exim/outgoing-interfaces}}
; MY_EXT_SECOND_6IP ; MY_EXT_6IP
Apparently this is now invalid, but there is no mention of breaking changes in
4.99 in https://github.com/Exim/exim/blob/master/src/README.UPDATING , and in
the changelog for 4.99 I wasn't able to identify why this has happened.
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