I've been trying to get all my old emails from my company account to somewhere where I can store and search them after I leave the company later this week.
A search for "Email Archiving Solutions" brought up a few products, of which MailStore seemed to be well regarded. I downloaded it, only to find it's Windows only - so no good for me. I tried a few Mac equivalents, none of which were any good.
My next alternative was to copy everything into my Gmail account, so everything would be under proper tags (folders). I created the tags in Gmail, and then went to copy using Outlook Mac. In their wisdom, Microsoft have removed the copy functionality to Gmail accounts. Nice one.
OK - fire up Mac Mail and set up my accounts. After all the messages were downloaded, I started to copy, folder by folder. It all seemed to be going OK, except the messages weren't uploaded to Gmail. So, all the messages were in Mac Mail, but the tags on Gmail were empty.
Next... I looked for alternative email clients that would work on a Mac. EmMail seemed to be well regarded, so I downloaded the trial of that. It's all very nice and fast, and I started copying everything across. All was going well and I left it overnight. However, at some point it stopped uploading, so only half the messages are present. I restarted the client today, and it's uploading again. So, it seems that this will work eventually.
However, EmClient now seems to have stopped synchronising new messages from Gmail

Let's see what happens once the uploads have finished!