Error message after activating PHP 7

Any updates on this?

Looks like currently the plug-in is not usable with PHP 7 for this reason.

See also https://www.ads-software.com/support/topic/php-7-errors-safe_mode-set_magic_quotes_runtime

I emailed Mandrill about this and they said the plugin is no longer supported. Here’s the full response:

The wpMandrill plugin is no longer supported, so it will not be upgraded any longer. You should be able to use any plugin that allows you to use your Mandrill STMP information though. If you have any other questions, please let us know.

So switching to something like “Easy WP SMTP” would probably be best.