Zachary Karr
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Articles
Recent activity by Zachary Karr-
How to find SpamAssassin scan results
QuestionHow to find SpamAssassin scan results? AnswerWhen SpamAssassin scans an email the results are saved to the /var/log/maillog file. This can be used to determine what rules are being triggere...
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Email Disk Usage still showing after deleting messages
Symptoms After clearing messages from an email account using mdbox, the disk usage in /home/user/mail/domain.tld/account/ still is used. Description This behavior is due to how Dovecot stores and...
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How-To Determine which domains are configured with Remote MX Records
Introduction The files /etc/localdomains and /etc/remotedomains are used to configure if a domain is using remote or local MX records. They can be checked to determine the current configuration of ...
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How to Setup Two cPanel Servers in a Smart Host Configuration
Introduction Many providers now block outbound connections on port 25, meaning that a cPanel system would need to configure a smarthost to allow outbound emails to function. This resource covers ho...
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SSL23_GET_CLIENT_HELLO:unknown protocol
Symptoms The Exim error_log shows messages similar to the following: TLS error on connection from [192.168.1.1]:47082 (SSL_accept (TLSv1.2)): error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:...
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Apache Dovecot Solr does not work with partial email addresses
Question Why does a search in Roundcube not return a result when using a partial address like 'tes' instead of 'test' when using Apache Dovecot Solr Answer When using Dovecot Solr and searching ...
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Mailserver Protocol options do not update configuration
Symptoms Changing the protocol options IMAPS and POP3S in WHM at "Home / Service Configuration / Mailserver Configuration" does not have an effect on the Dovecot configuration on the server. Desc...
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Corrupted record in index cache file
Symptoms Dovecot generates errors similar to the following in the /var/log/maillog file: dovecot: imap(user@domain.tld)<782><R+lKIYC32qB/AAAB>: Error: Corrupted record in index cache file /home/use...
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Exim shows error "remote host address is the local host" when processing mail
Symptoms When email is sent to an address on the server, it is rejected with an error similar to the following: H=host.server.tld [192.168.1.1]:19338 X=TLS1.2:ECDHE-RSA-AES128-GCM-SHA256:128 CV=n...
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Unable to Log Into Single Email Account
Symptoms One email account for a domain cannot be logged into via an email client or Webmail, while other email accounts work. This includes the "Access Webmail" function in cPanel. Description ...