Problem send a custom email to a single contact


I want to send a email to a single contact.

For this I go to the contact-details, click on the “send email”-action and choose an existing email template. But the email is not loaded to the editor.

I just see the loading-spinner but no content in the email editor.

When I look at the network-response it seems that the content of the email template is fetched correctly.

We use mautic 4.0.1 with legacy email editor.

Hope someone can help me with this problem!

Best regards,


In case anyone else is also concerned…

Hi Dirk,

Did you get any update on this issue?



Nope. The issue is not progressing yet…

Hi Dirk,

I noticed that it in some cases after an upgrade the issue disappears.



I have the same problem. Is there already a solution for this?

I am experiencing the same problem on a number of instances after updating to 4.1.0

Just checked and I have the same issue.

We experience the same problem here on 4.1.2 and also already on previous versions (probably since 4.0.0).

Anyone able to resolve this issue ?

Same issue here.

Does it help if you regenerate assets?
php bin/console mautic:assets:generate

Thanks, but it did not work.

Still facing the same issue.

Actually this is a different issue @wlsfh , your problem is, that the sender address is not allowed in your SMTP.

You might be right, as the issue I’m facing is better described here

Hello all,

Do you still have the same problem with version 4.2.1?

Best regards,

I’m on 4.2.0 and it seems there’s no such issue.

Hello @wlsfh,

You use Mautic “with legacy email editor”?


Hi @pierre_a

If you mean the builder then yes.