2033853 - EWS: Unable to delete more than 1000 messages at a time on M365

Status: RESOLVED FIXED

(MailNews Core :: Networking: Exchange, defect, P1)

Description

[Eleanor Dicharry]

Microsoft 365 appears to have a hard upper limit on the number of messages you can delete at once set to 1000. I don't know if this is a configurable property or if it's common across all Exchange servers, but either way, we need to break our delete requests up into batches somehow. Currently it manifests as a complete failure to delete and we get the following XML response back from the server.

<?xml version='1.0' encoding='utf-8'?>
<ns0:Envelope xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://schemas.microsoft.com/ws/2005/05/addressing/none" xmlns:ns2="http://schemas.microsoft.com/exchange/services/2006/errors">
    <ns0:Header>
        <ns1:Action ns0:mustUnderstand="1">*</ns1:Action>
    </ns0:Header>
    <ns0:Body>
        <ns0:Fault>
            <faultcode>a:ErrorInvalidRequest</faultcode>
            <faultstring xml:lang="en-US">Exceeded maximum count of 1000 items that can be deleted in a single request. </faultstring>
            <detail>
                <ns2:ResponseCode>ErrorInvalidRequest</ns2:ResponseCode>
                <ns2:Message>Exceeded maximum count of 1000 items that can be deleted in a single request. </ns2:Message>
            </detail>
        </ns0:Fault>
    </ns0:Body>
</ns0:Envelope>

Comment 1

[Eleanor Dicharry]

Attachment: Bug 2033853 - Delete EWS messages in batches to avoid running into limits. r=#thunderbird-back-end-reviewers

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/00b1eef928dc
Delete EWS messages in batches to avoid running into limits. r=jtracey