Hi Somnath,

You are correct! Some emails are hitting the intended address and NOT being forwarded. It's only a small portion of the emails and as mentioned, weirdly, it happens to emails in an ongoing thread. Any idea how I can figure out why those particular emails are not being forwarded, and how I can sort to find all those that have not been forwarded so I don't have to go through months of emails and compare them to those forwarded to my personal account?

Thanks!

Thanks for the reply Somnath! Yes this is related to a personal Gmail address and a Google Workspace domain. I have a main Gmail address where my Google Workspace domain email is forwarded along with another Gmail address. Never had a problem before and have been using it this way for several years. I'm using Firefox and web-based Gmail. I have not made any recent changes to browser extensions, add-ons, apps, sites, or software programs specifically with access to that Google Account. Is there a way I can check this? Does it make sense that this could cause emails within ongoing threads to get lost? Thanks for your help!

Here's some more information: Full headers from an email that was sent to me and did not arrive, but said it was sent and did not bounce on the sender's end:

MIME-Version: 1.0 Date: Tue, 7 Jun 2022 14:46:19 -0400 Message-ID: <CAFioafdNgW=23S6T1H4K5XxxRTpeUqMUroAs8hMb=XXXXXXXXXXX> Subject: Test 2 From: "XXXXXXXX" <XXXXXXXXX> To: Sirie XXXXXXXX <XXXXXXXXXXX> Content-Type: multipart/alternative; boundary="0000000000001d574b05e0e001ec" --0000000000001d574b05e0e001ec Content-Type: text/plain; charset="UTF-8" more test --0000000000001d574b05e0e001ec Content-Type: text/html; charset="UTF-8" <div dir="ltr">more test</div>

Please help! Thanks!