I am using TB 128.4.3esr on Ubuntu 24.04 and mostly love it: thanks. However, I'm hitting a really irritating if erratic issue: TB often autofills an old address matching the first few letters I type for my addressee. It happens just rarely enough for me not to remember to check the autofill every time I start to address a new Email so I only get to know about it when the Email bounces, but it happens just often enough to be a real pain. I am 100% certain that it's not down to anything I am doing (the addressbook name and both the correct and incorrect addresses share the first say five letters and the autofill kicks in after about two I think). It happens for To: and Cc: fields, I don't know about Bcc: probably because I use bcc very rarely. I have only noticed it happening with two different addressees (oddly my wife's and my daughter's) and I am pretty sure that of the fair number of old addresses for both of them it's only ever one of those that TB chooses. One byproduct (I assume as I think I had deleted these before) is that the dead address is added to the address book of sent addresses and that may be perpetuating the issue. Please could we be able to select that TB only prompts with a preferred address for each addressbook entry or have a way to mark old addresses as dead. (I need to keep them to make it easier to find addresses that came from people at their old addresses.) I hope I haven't missed some option or setting that already does this. TIA and thanks again for TB, Chris