- Email error: "Remote host closed connection in response to initial connection"
- Mailman fails to start with "Site list is missing" error
- SMTP data timeout (message abandoned)
- All email accounts under one or more cPanel accounts are unable to log in
- Local email delivery to an account fails with "LMTP connection closed after end of data" error
- The IP you're using to send mail is not authorized to send email directly to our servers.
- Roundcube databases are not generated when accessing Webmail
- Troubleshooting for Exim Error: 535 Incorrect authentication data
- 550-Please turn on SMTP Authentication in your mail client
- Webmail loading Slowly corrupted Dovecot Indexes
- SMTP bounce message/error "550 Access denied"
- Email pipe.php Error: Use of uninitialized value $phpconf_mtime in numeric lt (<) at /var/cpanel/ea4/ea_php_cli.pm
- Searching in Webmail Returns UID SEARCH: Error in IMAP command UID SEARCH: Unknown argument
- Roundcube fails to send mail with 250 error
- SPF must allow google servers to send mail on behalf of your domain
- Roundcube Email Address Autocomplete Times Out
- Changes in Exim Configuration Manager Advanced Editor getting reverted
- Email Disk Usage is Incorrect
- Why does the "du" command show a smaller value for email disk usage than the cPanel interface reports?
- Could not open archive mbox dir for MAILING_LIST: No such file or directory at /usr/local/cpanel/Cpanel/Mailman/DiskUsage.pm line 150.
- SMTP error from remote mail server after end of data: 550 Message blocked.
- New or transferred account unable to receive mail: Rejected relay attempt | 550 Please turn on SMTP Authentication | $HOST is not permitted to relay through this server without authentication
- Policy server HTTP error
- Exim shows error "remote host address is the local host" when processing mail
- All hosts for 'example.tld' have been failing for a long time (and retry time not reached)
- "SMTP AUTH is required for message submission on port 587" error when trying to send mail
- Certain Email Accounts Cannot Search Inbox (Error: Server Error(OK))
- Roundcube fails with "AUTHENTICATE PLAIN: Account is temporarily unavailable"
- 530 Must issue a STARTTLS command error when sending e-mail using a smart host
- Dovecot "service(stats): client_limit (1000) reached" message