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Cpanel Latest update email piping issue / local delivery failed ? (solved)

Hello,

Yesterday their was a major issue caused due to Cpanel Security updates, All the customers using email piping to forward emails were getting Delivery failure issue.

Most of the customer where getting below error :
==============================================================================================

T=jailed_virtual_address_pipe: Child process of jailed_virtual_address_pipe transport returned 1 from command: /usr/local/cpanel/bin/jailexec
===============================================================================================
After our technical staffs hard-work and investigation we found a successfully solution.

To solve this email delivery failure issue you have 3 options.

1) To enable Normal shell access for the domain facing thing problem. If it has jailed shell access or do not have shell enable it to normal shell access.

2) You need to add email Piping line with full path in /etc/valiases/domainname.com file

It should look like :

pipe@domain.com: “|/usr/local/bin/php -q /home/user/public_html/pipe.php”

3)

Alternate method:
In your exim configuration file that is /etc/exim.conf comment the following code with # as mentioned:

========
jailed_virtual_address_pipe:
driver = pipe
#force_command
#command = /usr/local/cpanel/bin/jailexec $address_pipe
#user = “${lookup{$domain}lsearch* {/etc/userdomains}{$value}}”
#group = “${lookup{$domain}lsearch* {/etc/userdomains}{$value}}”
return_output
=============

This issue was resolved by Web Hosting UK techs in less than 30 minutes .. This issue is global and most of the Cpanel servers are facing this problem.

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