SincereBlue

I have the same issue. Meta description is overwritten with default, when press update for the article.

Thx MailPoet for the feedback.

To those affected: I switched to the Mailster Plugin in the beginning of November. I am satisfied. Operation is smooth. Only had two minor issues during setup/configuration. Works good with Sendgrid. So that might be an option to consider as well as swithcing to the newer Mailpoet version.

Ok, as short term measure I blocked one IP, I suspect

These may be related:
https://www.ads-software.com/support/topic/26000-spam-newsletter-signups

Thx. One the affected machine, have you located if the exploiting post Requests are comping from a single IP? As a short term measure that could be blogged?
Or would it be possible to add a regular expression into the .htaccess to deny access for this POST request to the machine in the first place?

I have the same issues as @grobmotoriker

Since Sept. 21st someone uses an exploit to send emails through Mailpoet. If I disable the Send with settings of Mailpoet it stops (because then it cannot use the Sendgrid API anymore.
Sendgrid account itself is not compromised. But changing password there does no solve it, because as soon as I enable the Sendwith settings of Mailpoet (with the changed credentials) it starts again.

Any idea how to stop this?

Grobmotoriker, were you able to fix it by manually altering code in class.sendgrid.php ?

Yes, worked fine. Drop-down field is now populated with countries.

Many thx for the great and super-fast help.
If after more testing I will use geotargeting intensively I’ll sure consider upgrading to premium version of your plugins

Looked into database
‘_Maxmind_geoIP’ table is empty.
Anyway to manually trigger/force filling?

Deactivating and activating has no effect.
As the geotargeting lite has no settings menue, is there anywhere to look?