This page lists known conflicts with the Subscribe2 Plugin. If there is a workaround it is also described.
This plugin can block the sending of emails from the Subscribe2->;Send Email page and re-direct to he home page of the site. There are 3 possible solutions (thanks to MrFent37):
- Disable Firewall 2
- Uncheck Block directory traversals and Block WordPress specific terms in the settings for Firewall 2
- Whitelist your own IP address in Firewall 2
This plugin seems to override the content type of emails resulting in Subscribe2′s HTML emails being sent in plain text and the plain text emails being sent with an HTML format header.
The HTML format may be the preferred option so the HTML tags are hidden in the resulting emails. To accomplish this go to User Meta ->; Settings (General Tab) then, select “Email Format” as “HTML” and hit Save. (Thanks to razorteeth)
This captcha plugin fails to display correctly when Subscribe2 is active. It may apply to other captcha plugins too.
This events plugin appears to use custom post type and custom taxonomies. After correctly registering these with Subscribe2 using the in-built filters, errors are thrown by the event calendar plugin. It seems from a code review that a custom data table is used for event data rather than the posts table.