I'm hoping somebody can help us with this, as it's been bedeviling us for months in one form or another. This sbcglobal.net email (now managed by AT&T through Yahoo) has been the email our company has used since 2004. Here's the full history of the problem:
About a year and a half ago, we realized that we weren't getting emails from one or two specific domains that had previously worked fine. The emails didn't go into spam or trash--they didn't show up at all! As a workaround, we created filters, which would redirect emails from those companies into a new folder, on which we could transfer them to the inbox. We were able to get the emails in this way, but over time we discovered a few more domains from which we couldn't get emails unless we created a filter.
A few weeks ago, a new email address from one of these problematic domains tried to send us an email. It wouldn't come through at all, even when we created new filters for it. After many calls to AT&T, one technician told us that the presence of any filters at all could prevent us from getting emails from certain domains and told us to delete all our filters. It didn't make sense, but I tried it, then requested test emails from contacts at two of the problematic domains. They came through! I thought the issue was solved.
I just discovered on Monday that someone from a new company we will be doing business with sent us an email, and we never received it; I only found out because our partner, CCed on the initial email, replied to everyone, including us. There are no filters. I did find two "blocked" addresses (in a different section of settings from "filters") that my boss thinks he added in the 2010s and deleted those.
Has anyone had a similar experience, or know what could be the root cause and how to fix this? We could ask this new company to send us a test email and see if it comes through, but at this point the boss wants this resolved definitively. He's saying we may have to switch to a new email address and archive or transfer all our old emails dating back nearly 20 years. This would be a nightmare! I called AT&T again, but they bounced me around to many different places, even giving me phone numbers that were no longer valid, and ultimately sent me to the Digital Assistance Center, where the woman told me that they were powerless to help because it was not a login issue and that a local technician like Geek Squad would have to fix our email settings. That sounds fishy to me.
Please, if you have any help or insight, I would be really grateful!