Question

What could be the reasons duplicate emails are sent from Ubuntu 20.04

I used DO LAMP for Sendy. Sendy is a newsletter program and it uses AWS SES and I set it up correctly.

It sends a confirm-email ONCE and an email-confirmed email TWICE. The Message-IDs are different and one is created after 1 second.

Created at:	Tue, May 18, 2021 at 10:22 AM (Delivered after 0 seconds)
Created at:	Tue, May 18, 2021 at 10:22 AM (Delivered after 1 seconds)

According to the developer, it should send it only once.

I disabled all cron-jobs, but I still get duplicates.

I’m not sure what could be the causes.

I’m open to any suggestions. Please let me know.

My server has the following ufw.

To Action From
443/tcp ALLOW IN Anywhere
80/tcp ALLOW IN Anywhere
22/tcp ALLOW IN my-ip-address
22/tcp ALLOW IN my-ip-address
25/tcp ALLOW IN Anywhere
110/tcp ALLOW IN Anywhere
443/tcp (v6) ALLOW IN Anywhere (v6)
80/tcp (v6) ALLOW IN Anywhere (v6)
25/tcp (v6) ALLOW IN Anywhere (v6)
110/tcp (v6) ALLOW IN Anywhere (v6)

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Hi there,

In theory, if there are no corn jobs added, no emails should go through. Could you share the current cron jobs that you have set up?

I’ve noticed a few different articles where people reported the same problem due to the corn job running too frequently.

Regards, Bobby