Why two Send boxes in Mail App ?

Did you read step 2 in the first linked article?

Step 2. Assign mailbox functions

You should assign the correct mailbox function for Drafts, Sent Mail, and Trash. Starting with Drafts, click on the Drafts folder/label under your email account name—then go to the Mailbox menu and select “Use this Mailbox for” and select Drafts. Then do the same for Sent Mail and Trash, carefully selecting the corresponding function.

It is just unbeleivable that you and the others do not admit that we have a serious problem here

We do not have a problem. You have a problem. Mail and Gmail work fine together having followed the advice in the articles I posted, and the ones you posted. You can see from the difference between your screen shots and mine, I have "moved" the Gmail "labels" up to their respective positions in the unified mailboxes by following exactly what it states in the above articles.

Bomiboll wrote:

Barney , I have done that many times and the problems persist

I am not using Mail any more, until next generation OS which I hope will improve on this

Until then the subject should go sleeping.

It is just unbeleivable that you and the others do not admit that we have a serious problem here

Speaking for myself here I am tired of your insinuation that I am lying about Gmail and the way it works with Mail. So far you have failed to post anything relevant to your position.

Barney is right, you have a problem, the rest of us don't.

I went through the Gmail setup process on a Guest account to provide you with a visual example

Before:

Here is now I "unified" them:

I did the same for Drafts, Spam (Junk), and Trash.

Here is how it looks after:

Bomiboll wrote:

As you see - there is no "Use This Mailbox For" option, but it is found in the Mailbox menu

Which is what both Barney and I already told you, do you ever read anything?

This was the first response to you a long time ago:

Note where it says, go to the Mailbox menu and choose Use This Mailbox for Sent

This was where Barney pointed it out as well:

Clearly you are not capable of understanding simple instructions given in English, once more I urge you to switch to an email system you can understand, Gmail is not it.

That article once again gives exactly the same advice as you have been given in this thread. I renew my earlier suggestion to find an email system that you understand, maybe your ISP has a free one you could use.

It is not a Mail problem. Gmail implements "Labels" which are not IMAP standard. The messages can have multiple labels, which is very difficult to implement when they are supposed to be folders or mailboxes. You either have to duplicate the messages in multiple folders, or do some other trick to represent that non-standard metaphor.

All Mail is a label that every message in Gmail has. Even if you Trash an email, it doesn't remove the "All Mail" label. The hints in those articles provide a mechanism for causing Gmail to also remove the "All Mail" label when you trash an email. If you don't do that, All Mail will continue to accumulate all of the email you thought you had deleted.

While you have expended a lot of energy, you still do not understand that Gmail is a non-standard implementation of an IMAP email server. That is why you have to go to all the trouble to make it act like one.

Mail has absolutely none of these issues when used with a standards-compliant IMAP or POP mail server. It is the non-standard implementation of "tagging" a message with multiple labels and not organizing them in actual folders that causes the problems that seem to fly miles above your head.

Bomiboll wrote:

OK then. Mail cannot cope with the ****** not IMAP standard of GMail.
But then why does it destroy my Gmail organization??

I have Gmail as my standard mail and when looking at it now it is altered.

Who did that ? Mail of course.

It accumulated my All Mail in Gmail with lots of mails that I thought were trashed

It added unnecessar labels such as Deleted Messages etc (I cant even describe the mess)

And after a very lengthy Forum conversation I come to conclusion to abandon Mail altogether.

Not Gmail but Mail must be abandoned.

What about Sparrow ? does it solve the problems better ?

Mail did none of that, Gmail added 'All Mail', 'Deleted Items' etc (you can check for yourself, just disable the account in mail and all of the mailboxes you don't want will vanish)

Use PostBox

Here is a link

Bomiboll wrote:

http://www.macworld.com/article/2033842/make-mail-and-gmail-play-nice.html

This article maintains that the problem is with Mail and not Gmail

It says that the All Mail label in Gmail will not play nice with the All Mail and Archive folders in Mail

Once again, Gmail is tagging a message with a label, not moving the email into a container.

Nothing is Archived in Gmail. It is tagged with the "All Mail" label. To most people, Archiving is moving messages to a safe location. That's not what Gmail does. The author considers untagging all other labels but "All Mail" as Archiving, but it is not. What Gmail needs to do is recognize that an Archive folder means, "remove all labels except 'All Mail'"

However, that won't work for those of us who don't want Google datamining all of our old email and want messages that are trashed to be deleted, forever. I don't see any way Google will "fix" that problem as they want to sell your information to the whoever they can.

Postbox claims they have, "Awsome GmailSupport." I bet that means they leave all the email in "All Mail" so that Google can continue datamining.

Given that Google is one of the standard account types you can select when creating an account, Apple will likely continue to improve account setup. It would be simple for them to code it to map the standard folders automatically, like they do with other standard IMAP accounts. I doubt they will implement "labels" as it doesn't fit in the Mailbox paradigm. Apple keeps screwing up Mail to make it work with Outlook. Perhaps they'll do the same with Gmail.

If you can't make it work after 6 weeks of advice I doubt that you ever will, try another client, Postbox claims good Gmail support.