Hi wbrzosko,
Thanks for trying out Post Notif. I am sorry to hear you’re running into issues with the send post notification process failing to complete. Both email sending and delivery are black holes of misery, IMHO, so I can’t say with any confidence that it has anything to do with either Gmail or Wordfence. ??
I am aware, however, of the inability to (easily) cancel initiated send processes and this is on my “to repair” list. It is actually a part of my overall planned revamping of the send notification’s architecture which will also include allowing admins to more specifically configure their send preferences (to avoid timeouts for large subscriber lists and account for differences in hosting providers’ email send limits).
There is not presently any logging available, but, if you have access to your database directly, with a specific post_id value in hand, you can:
(1) Search for post_notif_count_sent_post_id_[POST ID VALUE] in the [wp_]options table to see exactly how many notifications were sent for this post
(2) Determine the set of subscribers to whom notifications WERE sent to by selecting some/all of the columns in the [wp_]post_notif_subscriber table, including “ORDER BY id”, and LIMIT [INTEGER SHOWN IN ROW FOUND BY (1) ]
(3) Cancel the stuck process by searching for post_notif_count_to_send_post_id_[POST ID VALUE] in wp_options and deleting this row. If you are going to do this, I’d encourage you to delete the row found by (1) as well
I hope this helps alleviate some of the aggravation this has caused you and can potentially tide you over until I can get this fixed. If not, I know there are other highly-regarded post notification plugins here in the www.ads-software.com directory and would encourage you to check them out to see if they better suit your needs.
Thanks,
Devon