Use these commands to remove the entire exim mail queue from centos running cpanel.
service exim stop
cd /var/spool/exim
find input -type f -exec rm -rf {} \;
find msglog -type f -exec rm -rf {} \;
service exim restart
3/4" Brass Electric Solenoid Valve 24 VDC 24-Volt DC Water Air Gas VITON NC B21V
$34.80
U.S. Solid Electric Solenoid Valve 1/4 inch Brass 12V DC
$25.19
Asco - 8210G009 Red-hat Ii 2 Way 120v-ac 3/4in Npt Solenoid Valve
$50.00
12v Hydac 174184 Electric Valve Solenoid 3012600 " "
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1/4" Inch Fast Response Electric Air Water Solenoid Valve 12V DC Normally Closed
$10.99
1/2" 110V 120V AC Brass Electric Solenoid Valve Water Air Gas Viton NC 110VAC
$35.95
4V210-08 5 Way 2 Position Solenoid Pneumatic Air Valve 1/4" BSPT 110V Double 120
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DELTA POWER HYDRAULIC SOLENOID Valve 86060099
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U.S. Solid 1/2'' Brass Electric Solenoid Valve 12V DC Normally Closed Air Water
$34.64
U. S. Solid 3/4" Brass Electric Solenoid Valve 12V DC NC VITON Semi-direct
$33.59