Tag: Outlook Errors

Microsoft 365 Exchange Error Code Fix-it owner indicator – This section provides an at-a-glance view of the issue and who needs to fix it.

Microsoft 365 Exchange Error Code 432 4.3.2 – STOREDRV.Deliver; recipient thread limit exceeded

Microsoft 365 Exchange Error Code 5.7.1 – Delivery not authorized

Microsoft 365 Exchange Error Code 5.7.513 – Service unavailable, Client host [$ConnectingIP] blocked by $recipientDomain using Customer Block list (AS16012607)

Microsoft 365 Exchange Error Code 5.7.1 – Client was not authenticated

Microsoft Outlook Email Error Code – 550 OU-002

Microsoft 365 Exchange Error Code 5.7.511 – Access denied, banned sender

Microsoft 365 Exchange Error Code 4.7.324 – dnssec-invalid: Destination domain returned invalid DNSSEC records

Microsoft 365 Exchange Error Code 4.7.26 – Access denied, a message sent over IPv6 [2a01:111:f200:2004::240] must pass either SPF or DKIM validation, this message is not signed

Microsoft 365 Exchange Error Code 4.4.7 – Message expired

Microsoft 365 Exchange Error Code 5.1.1 – Bad destination mailbox address

Microsoft 365 Exchange Error Code 5.7.508 – Access denied, [$SenderIPAddress] has exceeded permitted limits within $range range

Microsoft 365 Exchange Error Code 5.7.321 – starttls-not-supported: Destination mail server must support TLS to receive mail.

Microsoft 365 Exchange Error Code 5.7.23 – The message was rejected because of Sender Policy Framework violation

Microsoft 365 Exchange Error Code 4.7.500-699 – Access denied, please try again later

Microsoft 365 Exchange Error Code 5.7.501 – Access denied, spam abuse detected

Microsoft 365 Exchange Error Code 5.7.134 – Sender was not authenticated for mailbox

Microsoft 365 Exchange Error Code 5.7.133 – Sender not authenticated for group

Microsoft 365 Exchange Error Code 5.7.509 – Access denied, sending domain [$SenderDomain] does not pass DMARC verification

Microsoft 365 Exchange Error Code 5.1.10 – Recipient not found