This perl script will bulk remove emails from the Postfix mail queue based on a keyword, email domain, or email address. The script came from this blog post: #!/usr/bin/perl $REGEXP = shift || die “no email-adress given (regexp-style, e.g. bl.*\@yahoo.com)!”; …
This command will tell you how many emails are in the Postfix mail queue postqueue -p | tail -n 1 | cut -d’ ‘ -f5
Command to edit crontab with Nano: env EDITOR=nano crontab -e
-i = Case Insensitive or Ignore Case -v = Invert Match to select non-matching lines -c = Output a count of the number of lines that have a match. Include -v to count non-matching lines -n = Prefix each line …
Validate the DNS Zone file: # named-checkzone <domain name> /path/to/zone/file Reload Zone Files: # rndc reload