Traditionally you use the « sendmail -q » command to flush mail queue under Sendmail MTA. Under Postfix MTA, just enter the following command to flush the mail queue:
# postfix flush
OR
# postfix -f
To see mail queue, enter:
# mailq
To remove all mail from the queue, enter:
# postsuper -d ALL
To remove all mails in the deferred queue, enter:
# postsuper -d ALL deferred
postfix-delete.pl script
Following script deletes all mail from the mailq which matches the regular expression specified as the first argument (Credit: ??? – I found it on old good newsgroup)
#!/usr/bin/perl
$REGEXP = shift || die « no email-adress given (regexp-style, e.g. bl.*\@yahoo.com)! »;
@data = qx</usr/sbin/postqueue -p>;
for (@data) {
if (/^(\w+)(\*|\!)?\s/) {
$queue_id = $1;
}
if($queue_id) {
if (/$REGEXP/i) {
$Q{$queue_id} = 1;
$queue_id = « »;
}
}
}
#open(POSTSUPER, »|cat ») || die « couldn’t open postsuper » ;
open(POSTSUPER, »|postsuper -d -« ) || die « couldn’t open postsuper » ;
foreach (keys %Q) {
print POSTSUPER « $_\n »;
};
close(POSTSUPER);
For example, delete all queued messages from or to the domain called fackspamdomain.com, enter:
./postfix-delete.pl fackspamdomain.com
Delete all queued messages that contain the word « xyz » in the e-mail address:
./postfix-delete.pl xyz