I have been getting a similar warning from Thunderbird for the past year, Mandrilla seems to be some sort of app that AR uses to handle their notifications.

I have not seen this notification.  Yet.  Thank you for the warning.  

I have not experienced this...

Michael Jacobs nailed this one!

I've turned off email notifations because of all the warnings.

Sharon,

I am not getting this on ours, so many glitches popping up all over.  A

Thanks for the heads-up. Have not seen it yet!

Another glitch? I haven't seen that, yet...

email support for answer new one for me

Sharon Tara I have not seen this warning. I don't received many if any AR emails.

I do not know.

I guess a query regarding Mandrill is merited.

And here is what I found:

Mandrill is a transactional email service used to deliver welcome emails, password reset emails and other one-to-one emails.

It looks like Active Rain is using Mandrill to deliver all their transactional emails.

http://mandrillapp.com is the actual account from where Mandrill customers can setup the service and review reports.

You shouldn't worry about seeing Mandrill in your emails because they are a genuine company and they won't send you spam. Sometimes their customers will try to spam other people, but they usually close accounts as soon as that happens.

Now we know.

I haven't seen that warning; perhaps it is from your security settings 

I have all notifications turned off, so I'm of no help what so ever

I've Never had that experience? Best to ask AR tech support.

Looking for same answer!

I have not had email notifications from AR for years.

This is a new one on me, but sounds scary. Just don't click on anything.

Sounds like the Mandrill emailing service is blacklisted.

I have not encountered that issue.

Probably because ActiveRain uses an email forwarding address in its header.  Nothing to be concerned about.  You should be able to mark this as trusted somewhere in your email program.  

Sharon Tara - well, I have no notifications for many days - and after reading your question, I think it's better not to have them...

Never seen this

It must just be some getting these meassages. I am not, Sharon.

Hi Sharon, I've never seen it! But, i'm going to keep my eyes open for it. 

I haven't seen that.

 Mailchimp (who owns Mandrillapp) is up to something, or maybe they got hacked.  I would delete without opening.

Why indeed?

I have not been receiving them or any notifications. Happy to read some of the answers though

To be honst I don't understand techy stuff, I have one client right now whose email keeps going into spam and I keep taking it out and have marked him as a safe sender and still I find his emails hiding in the spam box. We now text each other to let the other know we have emailed. I have seen mandrilla from other sources but not AR.

Oh no,  now I need to watch out for this.

Hum, interesting.  I have not see that.  Now if I do I will know I have been warned. Thank you.

No idea.

I've seen that before & then it corrects itself. Maybe AR's email has been hacked.

I have not seen that on my emails so far.  -Kasey

I haven't seen this yet.... let's hope I don't....

Thankfully, I have not yet seen this.