Q0626
Question
Exim can route local parts independent of their case, but the Cyrus LMTP daemon requires the correct case. How can I fix this?
Answer
You need to rewrite the local part to the correct case before running the router that routes to Cyrus. For example, if you require all lower case, and your router is called local_user, put this router in front of it:
lowercase_local:
driver = redirect
redirect_router = local_user
domains = +local_domains
data = ${lc:$local_part}@$domainThe setting of redirect_router causes processing of the rewritten address to start at the next router, instead of the first router. See also ../Q0630 and FAQ/Routing_for_local_delivery/Q0414, and see C045 for a more complete Cyrus configuration.