[ Web Browser ] -- (HTTPS Requests) --> [ Webmail SVR ] -- (IMAP / SMTP) --> [ Mail Storage SVR ] The webmail server acts as an intermediary gateway:
openssl s_client -connect localhost:993 -quiet webmail svr
The Webmail SVR abstracts the complexity of email protocols. It allows for "roaming access," enabling users to securely access their email from any internet-connected device without client-side configuration, while maintaining a consistent user experience comparable to desktop applications. [ Web Browser ] -- (HTTPS Requests) -->
Enforce Transport Layer Security across all endpoints to prevent cleartext password interception over public networks. Automate certificate renewals via Let's Encrypt to avoid
Automate certificate renewals via Let's Encrypt to avoid sudden browser-blocking access errors for end users. If you need help configuring your setup, please share:
g_access_group group=free_user access_pop=webmail.svr.ip access_imap=webmail.svr.ip access_smtp=webmail.svr.ip Use code with caution.