群发邮件出现错误 mailbox database is offline

使用双翼邮件群发软件发送邮件时出现如下的错误
STOREDRV; mailbox database is offline; STOREDRV.Submission.Exception:WrongServerException.MapiExceptionMdbOffline; Failed to process message due to a transient exception with message [BeginDiagnosticData]Cannot open mailbox. Server = IA1PR15MB5608.namprd15.prod.outlook.com, mdbGuid = 3b394175-ae7d-4f0e-87fb-ffc428133f04, maiboxGuid = 00034001-64ff-f58c-0000-000000000000 0.35250:40010000, 1.36674:FE000000, 1.61250:00000000, 1.45378:02000000, 1.44866:95010000, 1.36674:07000000, 1.61250:00000000, 1.45378:9E010000, 1.44866:00140000, 16.55847:29020000, 4.62630:76040000, 4.49384:76040000, 4.64014:76040000, 17.43559:7604000072020000000000000F00000000000000, 4.32881:76040000, 4.64678:76040000, 0.50035:66383539, 4.64625:76040000, 4.48294:76040000, 20.52176:140FC99B1300F02FBA060000, 20.50032:140FC99B8317F01F541A0200, 255.1494:6A078F32, 0.38698:08000000, 4.46904:76040000, 1.47326:E0810000, 0.33248:76040000, 2.63456:9ADA0000, 1.38714:02000000, 4.42712:76040000, 1.56872:FE000000, 4.58310:76040000, 4.35992:76040000, 0.50784:6630652D, 255.1750:76040000, 0.50288:08020000, 4.23354:76040000, 0.34830:76040000, 0.35180:76040000, 0.40974:76040000, 0.25913:00000000, 255.21817:76040000, 0.38770:31393A49, 4.63346:76040000, 4.46042:76040000, 0.32441:352D6165, 4.1706:76040000, 0.24761:2D666663, 4.20665:76040000, 0.25785:35363638, 4.29881:76040000[EndDiagnosticData] [Hostname=IA1PR15MB5608.namprd15.prod.outlook.com] 

错误信息比较长，如要的关键词是：mailbox database is offline 和  [BeginDiagnosticData]Cannot open mailbox

错误的原因：邮件服务器出现了问题。

解决问题，需要联系邮箱客服（微软的365邮箱客服，或者第三方客服）帮你解决，将关键词告诉客服。