Форум поддержки Thunderbird

I have 4 different email accounts, all managed by IONOS. These have all been set up under thunderbird OK. But when I send an email from 1 of these email accounts I always have to enter my password for that a/c. With all the other accounts, this is not necessary. I do not use Thunderbird or Firefox password managers. I assume that I must have made an error in setting up the outgoing details when setting up that particular account in Thunderbird, but I cannot find a way of checking if that is the case.

My wife and I each have our own Thunderbird accounts. They were created a long time ago, at different times. I’m pretty sure that they were not set up identically. She has recently experienced a problem: the number of new emails downloaded (as shown in the lower left corner of the screen) doesn’t match with the number of new and unread emails listed in the Inbox (the emails shown in boldface). Something else, though I think related: In the upper left corner of the screen, on the same line as the word Inbox, is a small circle with a number inside. I think that number gives the number of unread emails in the Inbox. Her number shows 20 but the actual number (boldface) is 15. Is this a serious problem? Is it a problem at all? If so, how to fix it? Thanks.

When receiving emails they appear as normal but in the background is another email of a couple of pages which has sender and receiver details at the top then lines of letters making no sense for the rest of the message.

I have set up my own domain guytec.org using Namecheap. The alias for email is tguy. I have pointed this new email to my gmail address. I can receive emails into my thunderbird Gmail box from tguy@guytec.org. I want to write emails with sent from tguy@guytec.org showing? How??

When I delete an email, it usually goes to the trash, so I can find it again. Now the emails are deleted permanently and disappear. How can I keep my emails in the trash? Sincerely Helle