在我的生产服务器上寻找 cron / 调度程序作业

>在我的生产服务器上，每个星期六每周电子邮件任务开始，我们都开始收到电子邮件。但是，我无法弄清楚这个 cron 作业在我的服务器或我的 php joomla 代码中设置的位置。

我已经检查了 crontab -e 输出及其如下所示：

# Edit this file to introduce tasks to be run by cron.
#
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
#
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').#
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
#
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
#
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
#
# For more information see the manual pages of crontab(5) and cron(8)
#
# m h  dom mon dow   command

由于这里的所有内容都已提交，因此我认为放置了 cron 工作。

请让我知道我应该调查什么，以便我了解这个每周电子邮件是如何触发的。感谢任何形式的帮助！