Hi @swinggraphics ,
We are aware of this and have actually logged an issue in the GitHub repository requesting some assistance on a fix.
https://github.com/Miller-Media/send-emails-with-mandrill/issues/11
It’s actually a known issue with a library that WordPress core uses called SimplePie. The solution is to either remove the RSS feed entirely or swap it out with a different RSS library. I created a pull request that simply removes the offending code (and thus the RSS feed) entirely from the plugin:
https://github.com/Miller-Media/send-emails-with-mandrill/pull/14
I’d prefer that the RSS feed remains but is accomplished using different code.
If you or any developers want to take this on one, happy to collaborate on the pull request. Otherwise, we will work on this as we have a bit of time on this end.
Thanks!
Update on this, we have had a PR submitted to the repository with a fix:
https://github.com/Miller-Media/send-emails-with-mandrill/pull/34
Will work on merging this in and getting live in the next version of the plugin.
I’ll mark this resolved. Thanks for your diligence!
