Just ran into an interesting factoid about gmail. Knowing that at least at some point in time email left on the server after so many days was considered “abandoned”, my method was to use gmail to receive my mail, then use a desktop client such as office Outlook or Thunderbird. I set up offline folders, then moved important stuff offline, keeping my apparent inbox very small.
Recently, I was poking around in the web client for Gmail and noticed the ‘All’ view of email. What I found there was my recent email items ‘tagged’ with a relevant tag like “inbox” followed by 5000 old emails going back a decade with no tags on them. So much for my strategy.
I rutted around in the gmail settings until I found one that said that after a mail item had no more tags it was to be moved to the trash. Of course by the tyranny of the default it was not selected. It took a while to clean out the old stuff but it appears the setting is working as desired.
Thought you might want to know.