quota-status fails when size=0 from Postfix

[Christoph Haas]

Am 29.07.21 um 02:44 schrieb dovecot at ptld.com:
>> - sending a test mail with SWAKS returns DUNNO
>>   (swaks is an SMTP test tool)
>>
>> the difference appears to be the "size=0" line that Postfix
>> sends if I use SWAKS.
> 
> Now im guessing, maybe because you are using a testing tool, maybe it is 
> not sending a message body in the email transmission, so postfix is 
> correcting reporting that message has an email body of zero bytes 
> (size=0).

There is a little body reading "This is a test mailing".

> Dovecot must approve this because current maildir size + 0 != 
> over limit. Maybe you are setup correctly and its just the testing tool 
> that creates an edge case you wont experience in the wild.

That may totally be an edge case. But even then

over-quota + 0 = still-over-quota

> Like you said when sending a real email it gets rejected right?

At least from Thunderbird, yes. But SIZE=… does not seem to be a 
mandatory addition to the RCPT-TO line. Perhaps other mail clients do 
not use SIZE either. Just guessting.

Thanks for your thoughts.

…Christoph