Dovecot/postfix Storage "Not supported by your provider"

Mutual Help
1

Delta Chat version 1.26.2
dovecot version 2.3.4.1 (f79e8e7e4)
postfix version 3.4.14

I have postfix and dovecot working together as my IMAP server. (Email has been working for years; INBOX/DeltaChat: "Connected; Last message sent successfully.)

In Delta.Chat I noticed

Storage on example.com
“Not supported by your provider.”

Is this a known limitation of postfix/dovecot or are there example configurations that can enable storage that is compatible with Delta.Chat?

1 Like
3

Thank you for the reply. I will read the link that you posted and if I find the solution there, I will report back.

5

I got the same message for my live.com mail and it seems I don’t receive any messages, could anybody tell me why live.com is not supported? Or is it?

6

I’m also wondering how to enable the storage indicator with Dovecot/Postfix. Did anyone figure out how to do it or what the Delta Chat feature is looking for?

7

it’s looking for the quota extension as defined in RFC 2087: IMAP4 QUOTA extension

1 Like
8

In Dovecot there is a Quota Plugin responsible for this.

2 Likes
9

For future reference this does work. I have mine working. You just need to enable the appropriate configs in dovecot and postfix for quota. Then run…

doveadm quota recalc -u
doveadm quota get -u

To update the values.

This is what helped me…
https://doc.dovecot.org/configuration_manual/quota_plugin/

And here is my /etc/dovecot/conf.d/90-quota.conf which ultimately made the data show on DC…

plugin {
  quota_rule = *:storage=1G
  quota_rule2 = Trash:storage=+100M

  # LDA/LMTP allows saving the last mail to bring user from under quota to
  # over quota, if the quota doesn't grow too high. Default is to allow as
  # long as quota will stay under 10% above the limit. Also allowed e.g. 10M.
  #quota_grace = 10%%

  # Quota plugin can also limit the maximum accepted mail size.
  #quota_max_mail_size = 100M
  quota_grace = 10%%
  # 10% is the default
  quota_status_success = DUNNO
  quota_status_nouser = DUNNO
  quota_status_overquota = "552 5.2.2 Mailbox is full"

}
1 Like
10

I have the same issue on Yandex (yep) e-mail service. Is it fixable?

11

It should be fixed by the email provider, in this case Yandex. If their IMAP server does not support IMAP QUOTA extension, then there is nothing Delta Chat can do.

2 Likes