Form stopped mailing submissions when more than one address in Email to: field

I always keep my plugins updated and am already on version 4.0.21. Not sure why you think I’m on 2.9.8.6, except that I mentioned that’s when this functionality was added. Thank you for considering the problem though.

All the addresses are also at our own domain. And it works if only one of them is there. It just doesn’t work if there is also a [cc], as it did before.

Deactivated all other plugins and it still didn’t work with more than one address in Email to:

The workaround I’m using until it’s fixed is to use email filtering on the incoming submissions and forward to the other addresses to which they need to go.
Thanks for your help.

Thanks for the suggestion. Am checking with hosting provider (SiteGround). They aren’t ‘fessing up to anything so far.

In the meantime, ran another test. When the “Return-path address” field is empty, “Email to:” works with [cc] emails, like it used to. But can’t leave it that way because the spam filters on the ultimate destinations may trap the forwarded messages.
(The way it used to work: the FS Contact Form sent the submission to 3 email addresses with same domain as the the site; 2 of those have forwarders going to the personal emails of the volunteers who monitor the emails.)
It will now send the submissions only if
1.) there is only one email address in the “Email to:” field OR
2.) there are multiple emails in “Email to:” field AND the “Return-path address” field is empty.

So it seems that adding a value to the “Return-path address” field is what ‘broke’ it.

Before the plugin stopped sending the emails, there was nothing in the “Return-path address” field. When trying to get it to start sending emails again, I followed the instructions for the Yahoo DMARC policy and added our postmaster address in the “Return-path address” field. It didn’t help, and the form still wouldn’t send to the primary recipient or the 2 [cc] recipients (all addresses on our own domain). I am using the Contact Form DB plugin to capture submissions, so I could see my test submissions landing in the DB, but no emails in any of the accounts.

I finally got FS Contact Form to send email, with the “Return-path address” field populated, when only one recipient is in the “Email to:” field. If I remove “Return-path address”, it seems to be working again to multiple emails. (But the emails don’t necessarily get to their final destinations, forwarded to email addresses outside the domain, so I need to have that “Return-path address” in there).

So yes, there seems to be some sort of bug with multiple emails in the “Email to:” field when there’s a value in the “Return-path address” field.

Thanks for your help, mbrsolution.

Hi mbrsolution — don’t know if it’s resolved; haven’t had time to test and am relying on mail forwarders.