CF7 is a great plugin and I have used it successfully on 5 or 6 sites all on Bluehost. At present I have a site on which it was working perfectly and now is giving me the dreaded 'Failed to send your message". This site is hosted on Linux/Apache. Emails that I send from outside WP(Gmail) to the addresses I have set up for the site are recieved, so I know Bluehost email server is functioning.
Question: Why would it stop and what should I look for in the WP environment that could have changed?
I know that the site admin started using Akismet recently and I thought this might be the problem so I deactivated Akismet and still cannot send mail. I have uninstalled and reinstalled/activated CF7 again with original sucessful form settings and it still does not work.
Is there a way for me to determine if WP is sending mails successfully from outside CF7? I'm not sure how to check this. I have read and installed/tried the WP-Mail SMTP plugin and the Configure-SMTP plugin with no success or visible changes.
What I'm asking then is really for some suggestions or ideas on how to troubleshoot this problem. I know CF7 is a great plugin and it WAS working. I just don't know enough about email issue in WP to troubleshoot it. Any ideas are greatly appreciated.