Leonidas Tsampros <ltsampros@upnet.gr> writes:
> Hello,
>
> long time no see :)
>
> TLDR: My Gmail inbox is full even after splitting mail. Here is why.
>

<snip>

That was easier than I thought. Please take a look at the patch attached
and send me your comments.

The changes can be described as such:

1. Add nnimap server user defined variable that defines whether the
server supports x-gm-ext-1 extension. Ideally this should come
from CAPABILITY string, but I wanted an explicit user knob for that.

2. Add nnimap-rfc822-date-to-imap4date that takes an rfc822 date value
and returns an imap4 datetime string (took the format from rfc3501).

3. Improve nnmail-split-incoming-mail so that if nnimap-x-gm-ext-1 is
defined for the current server, remove that fraking \\Inbox label from
the to be splitted mail. (Should this behaviour be configurable?)

4. Improve nnimap-request-accept-article so that it sets the
INTERNALDATE of the APPENDed message to the value of the message's date
header. (that's what I needed 2.)