Dear list, it has now cleared to me If no MX is found for domain, the MTA will sent the mail to the resolving host. In this way a no. of mail system is working. now I also have a domain which is pointing to my remote root server. say it is mydomain.com So how can I use this domain to get mail for user@xxxxxxxxxxxx here is my /etc/imapd.conf which I configured for dedicated.hosteurope.de ----------------------------------------------------- configdirectory: /var/lib/imap partition-default: /var/spool/imap sievedir: /var/lib/sieve admins: cyrus allowanonymouslogin: no allowplaintext: yes sasl_pwcheck_method: saslauthd sasl_mech_list: PLAIN LOGIN sasl_minimum_layer: 0 autocreatequota: 10000 reject8bit: no quotawarn: 90 timeout: 30 poptimeout: 10 dracinterval: 0 drachost: localhost servername: lvps87-230-8-228.dedicated.hosteurope.de defaultdomain: dedicated.hosteurope.de loginrealms: dedicated.hosteurope.de unixhierarchysep: no virtdomains: yes hashimapspool: true lmtp_overquota_perm_failure: no lmtp_downcase_rcpt: yes lmtpsocket: /var/lib/imap/socket/lmtp tls_ca_file: /var/myca/demoCA/cacert.pem tls_cert_file: /var/myca/newcert.pem tls_key_file: /var/myca/newreq.pem -------------------------------------------------------- ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html