closeshook: <-done@bugs.debian.org>: bad address syntax

Pushing qa/qa@4a019de4 resulted in this message from the BTS:

Date: Sun,  6 May 2018 19:01:28 +0000 (UTC)
From: Mail Delivery System <MAILER-DAEMON@godard.debian.org>
To: myon@debian.org
Subject: Undelivered Mail Returned to Sender

[-- Anhang #1: Notification --]
[-- Typ: text/plain, Kodierung: 8bit, Größe: 0,4K --]

This is the mail system at host godard.debian.org.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<-done@bugs.debian.org>: bad address syntax

[-- Anhang #2: Delivery report --]
[-- Typ: message/delivery-status, Kodierung: 7bit, Größe: 0,3K --]

Reporting-MTA: dns; godard.debian.org
X-Postfix-Queue-ID: 4DAE4A0D89
X-Postfix-Sender: rfc822; myon@debian.org
Arrival-Date: Sun,  6 May 2018 19:01:28 +0000 (UTC)

Final-Recipient: rfc822; -done@bugs.debian.org
Original-Recipient: rfc822;-done@bugs.debian.org
Action: failed
Status: 5.1.3
Diagnostic-Code: X-Postfix; bad address syntax

[-- Anhang #3: Undelivered Message --]
[-- Typ: message/rfc822, Kodierung: 8bit, Größe: 0,9K --]

Date: Sun, 06 May 2018 19:01:28 +0000
From: myon@debian.org
To: -done@bugs.debian.org
Subject: Bug # in qa.debian.org fixed

Hello,

Bug # in qa.debian.org reported by you has been fixed in the Git repository.
You can see the commit message below, and you can check the diff of the fix at:

https://salsa.debian.org/qa/qa/commit/4a019de4fcd279267d1cb4b6cab9cc58e0fe6f44

------------------------------------------------------------------------
Mention where to send bugs

Closes: #897624

------------------------------------------------------------------------

(this message was generated automatically)
--
Greetings
 
https://bugs.debian.org/

The same hook seems to have sent a second message that actually closed the bug. (See the BTS)

The corresponding hook log is https://salsa.debian.org/qa/qa/hooks/28035/hook_logs/50708