{"id":730,"date":"2013-03-21T04:58:22","date_gmt":"2013-03-21T04:58:22","guid":{"rendered":"http:\/\/www.milesweb.com\/hosting-faqs\/?p=730"},"modified":"2026-03-16T17:08:25","modified_gmt":"2026-03-16T11:38:25","slug":"what-are-frozen-emails","status":"publish","type":"post","link":"https:\/\/www.milesweb.in\/hosting-faqs\/what-are-frozen-emails\/","title":{"rendered":"What are frozen emails?"},"content":{"rendered":"

Mails sent to invalid, non existent mail accounts which are undelivered to the recipient & still sit in the mail queue are frozen emails. When an email is sent & undelivered the MTA (Mail Transfer Agent) will try to deliver it a couple of times. If still the email is not delivered, it will be added to your mail queue and will show as frozen. On cPanel dedicated servers<\/a>, exim is the MTA configured & the retry limit can be set in exim configuration file under RETRY CONFIGURATION.<\/p>\n

If the mail sent isn’t delivered in 8 days, it will be marked as frozen.<\/p>\n

Use command below to check the number of frozen emails on the server.
# exim -bp | grep forzen | wc -l<\/p>\n

Deleting the emails is a one command job, use the command as below to delete all the frozen emails.
# exim -bp | awk ‘$6~”frozen” { print $3 }’ | xargs exim -Mrm<\/p>\n

You can also set a cron job<\/a> to delete these frozen emails daily OR weekly.

Login to your server as root & create a file \/root\/frozen.sh. Enter the command above to delete frozen emails in this file. Now, schedule a cron to execute daily OR weekly.<\/p>\n

Command below will edit the crontab for user root
# crontab -e<\/p>\n

Enter the entry as below to schedule it daily.
0 0 * * * \/bin\/sh \/root\/frozen.sh<\/p>\n

Once done, use command below to check it is has been set.
# crontab -l<\/p>\n

It should show an output as below.<\/p>\n

\"cron\"<\/p>\n

You can follow the steps above on your linux VPS hosting<\/a> OR linux cPanel dedicated servers to manage\/delete the frozen emails.<\/p>\n

Save<\/span><\/p>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Mails sent to invalid, non existent mail accounts which are undelivered to the recipient & still sit in the mail queue are frozen emails. When an email is sent & undelivered the MTA (Mail Transfer Agent) will try to deliver it a couple of times. If still the email is not delivered, it will be […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,3064],"tags":[],"class_list":["post-730","post","type-post","status-publish","format-standard","placeholder-for-hentry","category-email-issues","category-general-information"],"yoast_head":"\nWhat are frozen emails?<\/title>\n<meta name=\"description\" content=\"Mails sent to invalid, non existent mail accounts which are undelivered to the recipient & still sit in the mail queue are frozen emails.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.milesweb.in\/hosting-faqs\/what-are-frozen-emails\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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