Unexplained mutt error

[Ion]

On 20/02/2022 13:28, Kevin J. McCarthy wrote:

> On Sun, Feb 20, 2022 at 01:13:56PM -0600, Ion wrote:
>> On 20/02/2022 12:37, Kevin J. McCarthy wrote:
>>> Are you sure you have a "Sent" folder on your mail.messagingengine.com
>>> account, that you can access and write to?

Here are my account settings from Thunderbird. They work.

IMAP server mail.messagingengine.com ionmich at eml.cc 993 SSL/TLS
SMTP server smtp.pobox.com ion at pobox.com 587 STARTTLS

So doesn't that indicate that I have an accessible "Sent" folder? But
here's more. In Thunderbird settings Copies and Folders are all on
Pobox. So perhaps that's the problem. How would I define those in my
.muttrc?

>>
>> Well if I don't have access to it why does...
>>
>> :~> echo "" | mutt -s "subject" -i file.txt ionmich at gmx.us" work when it
>> uses the same .muttrc file?
>
> Fcc'ing to an IMAP mailbox is not supported in batch mode.  So the
> batch mode send is not trying to record the sent message to '+Sent'.
>
Thank you that explains a lot.
>>> On Fastmail, for instance, the correct setting is:
>>>   set record = "+Sent Items"
>>> but perhaps their 'pobox' users are configured differently.
>>
>> I changed it to "+Sent Items".  Nothing changed.
>
> Did you check that you have a "Sent" or "Sent Items" folder, that you
> can access and write to?  Perhaps you could try another mailbox that
> you are sure exists and you can write to?
>
> It may also be useful to run mutt in debug mode, e.g. with '-d 2' as
> an argument.  If it's compiled with debug mode, that will generate a
> file, ~/.muttdebug0 with commands sent to the SMTP and IMAP servers. 
> Perhaps that will give a clue as to where the error is coming from.
>
Unfortunately DEBUG was not defined during compilation, and I don't
think I am sufficiently advance to compile it.