• Empty mailbox

    Overview Whenever a user exceeds his or her storage, an e-mail client may report zero e-mails present despite there actually being mail in the mailbox. Cause The mail server, Dovecot, uses a few cache files to speed up mailbox access on your account. In certain circumstances, these caches can become corrupted…

  • Changing webmail locations

    Webmail locations may be changed from their default settings within the control panel under Mail > Webmail. Click Change Link to enter a new subdomain. This subdomain must not be present under Web > Subdomains > List Subdomains. Once changed, this will affect all users that access webmail for the given domain. Confirmation dialog to change…

  • Converting e-mail address types

    Overview In certain situations, an e-mail address that delivers to an account on the server may want to be converted to an e-mail address that forwards externally to another address and vice-versa. Solution Login to the control panel Visit Mail > Manage Mailboxes Under Change Mode, select View/Edit Mailboxes Select the mailbox to edit…

  • Creating a forwarded e-mail

    Overview Forwarded e-mails are e-mails that arrive on the server, but instead of delivering to a local user, these messages are passed off to an external e-mail address hosted elsewhere. Setting up a forward Visit Mail > Manage Mailboxes within the control panel Enter a new e-mail address name under Add a…

  • Achieving Inbox Zero

    Overview Inbox Zero is a rigorous approach to keep your inbox free of e-mail – or at least nearly empty. Any mail that is read will be migrated to an Archives IMAP folder after 5 minutes. Any mail that is starred in an e-mail client will, however, remain in the inbox until unstarred….

  • Accessing e-mail

    Overview E-mail may be accessed either through webmail within the control panel or remotely from a desktop client such as Outlook, Thunderbird, or Mail. Important login information Your login will always be user@domain for e-mail. For example, if your domain is example.com and your username myadmin, then the proper e-mail login is myadmin@example.com and not myadmin. Your…

  • Improving mail filter performance

    Overview E-mail that flows into the server goes through several phases of filtering before final delivery, including: DNSBL lookups on handshake Deep protocol inspection DomainKeys/SPF validation SpamAssassin filtering Whitelist management Hash-sharing systems (DCC & Razor) Token-based regex matching Markup filtering Bayesian filtering All steps in the filtering process are automated, except for…

  • Accessing Spam folder

    Overview Your “Spam” folder is an e-mail folder on all e-mail accounts that quarantines e-mails that have an above-average probability of being spam, but are not clearly spam. In SpamAssassin scoring terms, these are messages that score between 5 and 10. Accessing the Spam folder There are 2 ways to access…

  • POP3 vs IMAP e-mail protocols

    Overview POP3 and IMAP are two separate protocols to access e-mail stored on the server. POP3 originated first in 1996 and IMAP in 2003. POP3 is designed for devices that have limited Internet connectivity and limited storage available on the mail server. POP3 is suitable for a dial-up connection or situations in…

  • Unable to send e-mail

    Overview Client is able to receive e-mail, but not send. If client is unable to both send and receive e-mail, then refer to Accessing e-mail for proper login details. Note, this does not affect webmail. Only desktop/handheld mail clients apply. Causes Firewall restriction on port 25 ISPs commonly implement firewall…