I just installed an E-Mailserver using exim for SMTP, courier(-imap) for fetching mails via IMAPv4 and squirrelmail as web client for the end user. Everything works fine. But when I sent an E-Mail to adress on my server, it is stored in the file /var/mail/<UNIX-USERNAME>, but not in the maildirs I created in /home/<UNIX-USERNAME>/MaildirI am also able to log into squirrelmail. Sending mails also works. The copy of the sent E-Mail is stored in the right directoy. So, how do I tell exim to deliver incoming E-Mails to /home/<UNIX-USERNAME>/Maildir/INBOX?Edit: My exim config (removed comments for better view)primary_hostname = renamed-gaming.comdomainlist local_domains = @domainlist relay_to_domains =hostlist   relay_from_hosts = localhostacl_smtp_rcpt = acl_check_rcptacl_smtp_data = acl_check_data#tls_certificate = /etc/ssl/exim.crt#tls_privatekey = /etc/ssl/exim.pemdaemon_smtp_ports = 25 : 465 : 587tls_on_connect_ports = 465never_users = roothost_lookup = *rfc1413_hosts = *rfc1413_query_timeout = 5signore_bounce_errors_after = 2dtimeout_frozen_after = 7dbegin aclacl_check_rcpt:  accept  hosts = :          control = dkim_disable_verify  deny    message       = Restricted characters in address          domains       = +local_domains          local_parts   = ^[.] : ^.*[@%!/|]  deny    message       = Restricted characters in address          domains       = !+local_domains          local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./  accept  local_parts   = postmaster          domains       = +local_domains  require verify        = sender  accept  hosts         = +relay_from_hosts          control       = submission          control       = dkim_disable_verify  accept  authenticated = *          control       = submission          control       = dkim_disable_verify  require message = relay not permitted          domains = +local_domains : +relay_to_domains  require verify = recipient  acceptacl_check_data:  acceptbegin routersdnslookup:  driver = dnslookup  domains = ! +local_domains  transport = remote_smtp  ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8system_aliases:  driver = redirect  allow_fail  allow_defer  data = ${lookup{$local_part}lsearch{/etc/aliases}}# user = exim  file_transport = address_file  pipe_transport = address_pipeuserforward:  driver = redirect  check_local_user# local_part_suffix = +* : -*# local_part_suffix_optional  file = $home/.forward# allow_filter  no_verify  no_expn  check_ancestor  file_transport = address_file  pipe_transport = address_pipe  reply_transport = address_replylocaluser:  driver = accept  check_local_user# local_part_suffix = +* : -*# local_part_suffix_optional  transport = local_delivery  cannot_route_message = Unknown userbegin transportsremote_smtp:  driver = smtplocal_delivery:  driver = appendfile  file = /var/mail/$local_part  delivery_date_add  envelope_to_add  return_path_add# group = mail# mode = 0660address_pipe:  driver = pipe  return_outputaddress_file:  driver = appendfile  delivery_date_add  envelope_to_add  return_path_addaddress_reply:  driver = autoreply# Address or Domain    Error       Retries# -----------------    -----       -------*                      *           F,2h,15m; G,16h,1h,1.5; F,4d,6hbegin rewritebegin authenticators
exim + courier + squirrelmail mail delivery in wrong directories
smtp;imap;exim;mail transport agent;courier
In Exim, you have to configure the transport for the local delivery router correctly. It's apparently now using a transport that's configured to deliver to /var/mail/$local_part, see if you have a transport that's configured to deliver to the directory = $home/Maildir and use that.Without knowing how your config looks like at the moment it's not possible to give more detailed information, however I think with the above hints you should be able to fix it.