IMAP and POP
Dovecot, the IMAP and POP service, loads the
You must also restart if you manually edited the listen or ssl_listen parameters.
SMTP
Postfix, the SMTP service, is very sensitive to network address and identity changes. The information it stores about the DNS name, the IP address, and network interfaces is only loaded once at service startup. To resume service after a change to the DNS name or the IP address, you must fully stop the service, and restart it.
You must also restart it if you manually edited the inet_interfaces, inet_protocols, smtp_bind_address, myhostname, or mydomain configuration parameters.
Mailing List
Mailman, the mailing list service, tracks the incoming and outgoing mail hosts by reading them on startup. If you change the hostname or IP address, restart Mailman for it to honor the configuration changes.
Antivirus and Antispam
ClamAV, the antivirus service, gets its listening address at startup as well. After making any changes to the DNS name or IP address, you must stop and restart to resume service.
SpamAssassin, the
Certificates for Mail Services
Mail servers that use SSL need new certificates. You might need to regenerate or repurchase the certificates. Use Server Admin to import the certificates, then configure each service’s new certificate.
Understanding IP Address or Network Identity Changes on Collaboration Services
Collaboration services provide tools to coordinate people and time. Collaboration services include:
ÂÂ Calendar service
ÂÂ Address Book service ÂÂ iChat service
ÂÂ Certificates for collaboration services
Chapter 7 Ongoing System Management
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