Not saving Sent or Draft emails

Question

Help, I'm using 2 IMAP email acount in mail and it won't save any of my sent messages or drafts, even though I have the setting set to store them under the mailbox behaviors.
Am I missing something?
These are two new mail accounts I've set up, you'll see from my last two posts earlier there have been some othe issues, now thankfully resolved.
My preference would be for the mail to be saved on rthe server and of course appear in Mail app.
I also haver a .Mac email which does this fine.

Answer 1

You’re welcome.
So do you recommend that I typr INBOX in the IMAP preference box?
Yes.
Will it be enough to just do that now or should I delete and recreate the new account?
It doesn’t really matter. If you do it without re-creating the account, Mail may lose track of which mailboxes should be used for what, but you can fix that by just doing Mailbox > Use This Mailbox For again.
Would you look at this image of my Mailapp setup and comment please
The appearance of your mailbox list is normal except for the black triangle to the left of the IMAP Inboxes, which is a consequence of the INBOX prefix issue.
There isn’t a pre-defined Junk group with the brown bag icon probably because you have the junk filter set to something other than Automatic mode, which in turn explains why the Junk mailbox on the .Mac server appears as a generic folder.
The two Junk-named folders that appear there are a “glitch” caused by some changes made on the .Mac server some time ago. You can get rid of them if you want. Mail will create the one it needs when it needs to if it isn’t already there.
Here’s a more thorough explanation of how mailboxes are supposed to appear in Mail:
1. Instead of grouping mailboxes by account, Mail groups mailboxes by purpose first, regardless of whether they are stored locally or on the server, then groups by account the mailboxes that don’t serve a specific purpose in Mail. If you have more than one mail account, each has its own Inbox, Drafts, Sent, Trash and Junk mailboxes, which appear under the respective group showing the account name instead of the real name of the associated mailbox in the filesystem.
This has the advantage of letting you choose at any time, and independently for each mailbox, whether you want to look at your Inbox, Sent, Trash, etc. mailboxes as if you had just one of them shared by all accounts (i.e. an aggregate), or look at each of the corresponding individual mailboxes separately.
2. Each mailbox under a pre-defined group is associated with a mailbox in the filesystem whose name may or may not be exactly the same as the name of the corresponding mailbox group. By default, the name of the actual mailboxes in the filesystem associated with Sent and Trash, for example, would be Sent Messages and Deleted Messages, respectively.
3. The association between a mailbox in a pre-defined group and the actual mailbox in the filesystem is fixed for POP accounts, but can be changed for IMAP accounts by means of Mailbox > Use This Mailbox For or the corresponding Preferences > Accounts > Mailbox Behaviors > Store messages on the server setting.
4. Mail may defer the creation of a pre-defined mailbox until actually needed to store messages there. Also, in some circumstances Mail may be unable to create or locate the actual mailbox in the filesystem (see #10 below for an example), but the association does still exist in those cases from a logical point of view, even though Mail may be unable to display or store messages there.
5. Each and every mailbox appears once and only once in the mailbox list, be it (1) under one of the pre-defined groups with an icon that conveys its purpose and the name of the account it belongs to (if you have more than one mail account), or (2) with a generic folder icon and the real name of the associated mailbox in the filesystem if it serves no specific purpose as far as Mail goes. Under no circumstances can the same mailbox appear both ways; it’s either one or the other, depending solely on whether it serves a specific purpose in Mail or it’s treated by Mail as a generic mailbox like any other.
6. By itself, the name of the mailbox is no indication of whether it serves a purpose in Mail. If it appears in Mail with a generic folder icon, then as far as Mail goes it’s a generic mailbox like any other, no matter what its name.
7. A mailbox with a generic folder icon can “disappear” and become associated with one of the pre-defined groups as a result of changing the corresponding Store messages on the server setting in Preferences > Accounts > Mailbox Behaviors or doing Mailbox > Use This Mailbox For on it (server-stored IMAP mailboxes only). This, in turn, would cause the mailbox being previously used for that purpose to become dissociated from the corresponding group and “appear” as a mailbox with a generic folder icon.
8. In addition to the account-specific mailboxes that appear with the account name under each of the pre-defined groups, Trash and Junk may also have an “On My Mac” mailbox. This is where messages deleted or marked as junk are moved if they were previously stored in a custom “On My Mac” mailbox or in a locally stored mailbox associated with an IMAP account (i.e. a mailbox for which Store messages on the server has been turned OFF in Preferences > Accounts > Mailbox Behaviors).
9. Generic mailboxes that don’t serve a specific purpose as far as Mail goes (i.e. mailboxes that appear in Mail with a generic folder icon), appear below the pre-defined groups. In principle, “On My Mac” mailboxes (i.e. locally stored custom mailboxes) would appear as top-level folders, whereas server-stored mailboxes would appear grouped under a globe icon for each IMAP or .Mac account. However, if there is no need to differentiate between “On My Mac” and server-stored mailboxes (e.g. because you only have one IMAP account and no custom “On My Mac” mailboxes), Mail will display the server-stored mailboxes as top-level folders instead, just as if they were “On My Mac” mailboxes.
Note: In Mail 1.x, generic mailboxes always appeared grouped, never as top level folders. “On My Mac” mailboxes, in particular, appeared under their own On My Mac group. In Mail 2.x, this changed to offer greater flexibility in how the user wants his/her custom mailboxes to be organized — see Mail Help’s “My mailbox organization was lost after upgrading Mac OS X” article. This allows the user to have multiple top-level “On My Mac” hierarchies, for example.
10. Some IMAP accounts use a NAMESPACE feature that Mail doesn’t handle properly and that causes server-stored mailboxes to appear as subfolders of the account’s Inbox, even though they really aren’t — see “Can't create folders, only subfolders of INBOX” in the Courier FAQ, for example. Those IMAP accounts require INBOX to be put in Preferences > Accounts > Advanced > IMAP Path Prefix for Mail to handle them properly.
Finally, you may also want to read the following article:
Blue and white Mail folders explained