diff --git a/pkg/jmap/jmap_api_quota.go b/pkg/jmap/jmap_api_quota.go
index a8082ca80..3c8f0f6e2 100644
--- a/pkg/jmap/jmap_api_quota.go
+++ b/pkg/jmap/jmap_api_quota.go
@@ -4,20 +4,32 @@ import (
 	"context"
 
 	"github.com/opencloud-eu/opencloud/pkg/log"
+	"github.com/opencloud-eu/opencloud/pkg/structs"
 )
 
-func (j *Client) GetQuotas(accountId string, session *Session, ctx context.Context, logger *log.Logger, acceptLanguage string) (QuotaGetResponse, SessionState, Language, Error) {
+func (j *Client) GetQuotas(accountIds []string, session *Session, ctx context.Context, logger *log.Logger, acceptLanguage string) (map[string]QuotaGetResponse, SessionState, Language, Error) {
 	logger = j.logger("GetQuotas", session, logger)
-	cmd, err := j.request(session, logger, invocation(CommandQuotaGet, QuotaGetCommand{AccountId: accountId}, "0"))
-	if err != nil {
-		return QuotaGetResponse{}, "", "", err
+
+	uniqueAccountIds := structs.Uniq(accountIds)
+
+	invocations := make([]Invocation, len(uniqueAccountIds))
+	for i, accountId := range uniqueAccountIds {
+		invocations[i] = invocation(CommandQuotaGet, MailboxQueryCommand{AccountId: accountId}, mcid(accountId, "0"))
 	}
-	return command(j.api, logger, ctx, session, j.onSessionOutdated, cmd, acceptLanguage, func(body *Response) (QuotaGetResponse, Error) {
-		var response QuotaGetResponse
-		err = retrieveResponseMatchParameters(logger, body, CommandQuotaGet, "0", &response)
-		if err != nil {
-			return QuotaGetResponse{}, err
+	cmd, err := j.request(session, logger, invocations...)
+	if err != nil {
+		return nil, "", "", err
+	}
+	return command(j.api, logger, ctx, session, j.onSessionOutdated, cmd, acceptLanguage, func(body *Response) (map[string]QuotaGetResponse, Error) {
+		result := map[string]QuotaGetResponse{}
+		for _, accountId := range uniqueAccountIds {
+			var response QuotaGetResponse
+			err = retrieveResponseMatchParameters(logger, body, CommandQuotaGet, mcid(accountId, "0"), &response)
+			if err != nil {
+				return nil, err
+			}
+			result[accountId] = response
 		}
-		return response, nil
+		return result, nil
 	})
 }
diff --git a/services/groupware/pkg/groupware/groupware_api_quota.go b/services/groupware/pkg/groupware/groupware_api_quota.go
index eebf6c148..bf0832abe 100644
--- a/services/groupware/pkg/groupware/groupware_api_quota.go
+++ b/services/groupware/pkg/groupware/groupware_api_quota.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/opencloud-eu/opencloud/pkg/jmap"
 	"github.com/opencloud-eu/opencloud/pkg/log"
+	"github.com/opencloud-eu/opencloud/pkg/structs"
 )
 
 // When the request succeeds.
@@ -14,7 +15,7 @@ type SwaggerGetQuotaResponse200 struct {
 	Body []jmap.Quota
 }
 
-// swagger:route GET /groupware/accounts/{account}/quota quota getquota
+// swagger:route GET /groupware/accounts/{account}/quota quota get_quota
 // Get quota limits.
 //
 // responses:
@@ -30,10 +31,57 @@ func (g *Groupware) GetQuota(w http.ResponseWriter, r *http.Request) {
 		}
 		logger := log.From(req.logger.With().Str(logAccountId, accountId))
 
-		res, sessionState, lang, jerr := g.jmap.GetQuotas(accountId, req.session, req.ctx, logger, req.language())
+		res, sessionState, lang, jerr := g.jmap.GetQuotas([]string{accountId}, req.session, req.ctx, logger, req.language())
 		if jerr != nil {
 			return req.errorResponseFromJmap(jerr)
 		}
-		return etagResponse(res.List, sessionState, res.State, lang)
+		for _, v := range res {
+			return etagResponse(v.List, sessionState, v.State, lang)
+		}
+		return notFoundResponse(sessionState)
+	})
+}
+
+type AccountQuota struct {
+	Quotas []jmap.Quota `json:"quotas,omitempty"`
+	State  jmap.State   `json:"state"`
+}
+
+// When the request succeeds.
+// swagger:response GetQuotaForAllAccountsResponse200
+type SwaggerGetQuotaForAllAccountsResponse200 struct {
+	// in: body
+	Body map[string]AccountQuota
+}
+
+// swagger:route GET /groupware/accounts/all/quota quota get_quota_for_all_accounts
+// Get quota limits for all accounts.
+//
+// responses:
+//
+//	200: GetQuotaForAllAccountsResponse200
+//	400: ErrorResponse400
+//	500: ErrorResponse500
+func (g *Groupware) GetQuotaForAllAccounts(w http.ResponseWriter, r *http.Request) {
+	g.respond(w, r, func(req Request) Response {
+		accountIds := structs.Keys(req.session.Accounts)
+		if len(accountIds) < 1 {
+			return noContentResponse("")
+		}
+		logger := log.From(req.logger.With().Array(logAccountId, log.SafeStringArray(accountIds)))
+
+		res, sessionState, lang, jerr := g.jmap.GetQuotas(accountIds, req.session, req.ctx, logger, req.language())
+		if jerr != nil {
+			return req.errorResponseFromJmap(jerr)
+		}
+
+		result := make(map[string]AccountQuota, len(res))
+		for accountId, accountQuotas := range res {
+			result[accountId] = AccountQuota{
+				State:  accountQuotas.State,
+				Quotas: accountQuotas.List,
+			}
+		}
+		return response(result, sessionState, lang)
 	})
 }
diff --git a/services/groupware/pkg/groupware/groupware_route.go b/services/groupware/pkg/groupware/groupware_route.go
index 70af31403..d2b3586ae 100644
--- a/services/groupware/pkg/groupware/groupware_route.go
+++ b/services/groupware/pkg/groupware/groupware_route.go
@@ -65,6 +65,7 @@ func (g *Groupware) Route(r chi.Router) {
 		r.Route("/emails", func(r chi.Router) {
 			r.Get("/latest/summary", g.GetLatestEmailsSummaryForAllAccounts)
 		})
+		r.Get("/quota", g.GetQuotaForAllAccounts)
 	})
 	r.Route("/accounts/{accountid}", func(r chi.Router) {
 		r.Get("/", g.GetAccount)