Error sending automatic, external and internal (oof) messages

%3CLINGO-SUB%20id%3D%22lingo-sub-1213482%22%20slang%3D%22en-US%22%3EError%20sending%20automatic%2C%20external%20and%20internal%20(oof)%20messages%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1213482%22%20slang%3D%22en-US%22%3E%3CP%3EI%20have%20an%20email%20box%20configured%20with%20automatic%20responses%2C%20and%20messages%20are%20being%20dropped%20by%20the%20office%20when%20it%20is%20sent%2C%20I%20searched%20all%20the%20docs%20and%20found%20nothing%2C%3C%2FP%3E%3CP%3EError%20message%3A%3CBR%20%2F%3EMar%206%2C%202020%2010%3A22%3A51%20AM%3CBR%20%2F%3EReceive%3CBR%20%2F%3EMessage%20received%20by%3A%20FR1PR80MB2039%3CBR%20%2F%3EMar%206%2C%202020%2010%3A22%3A52%20AM%3CBR%20%2F%3ESubmit%3CBR%20%2F%3EThe%20message%20was%20submitted.%3CBR%20%2F%3EMar%206%2C%202020%2010%3A22%3A52%20AM%3CBR%20%2F%3EReceive%3CBR%20%2F%3EMessage%20received%20by%3A%20FR1PR80MB4889%20using%20TLS1.2%20with%20AES256%3CBR%20%2F%3EMar%206%2C%202020%2010%3A22%3A52%20AM%3CBR%20%2F%3EDrop%3CBR%20%2F%3EReason%3A%20%5B%7BLED%20%3D%20250%202.1.5%20RESOLVER.OOF.SuppressExternal%3B%20external%20OOFs%20are%20suppressed%7D%3B%20%7BMSG%20%3D%7D%3B%20%7BFQDN%20%3D%7D%3B%20%7BIP%20%3D%7D%3B%20%7BLRT%20%3D%7D%5D%3CBR%20%2F%3EMar%206%2C%202020%2010%3A22%3A52%20AM%3CBR%20%2F%3ESpam%20Diagnostics%3C%2FP%3E%3CP%3E%3CBR%20%2F%3Eattached%20image%2C%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-1213482%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EExchange%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EOffice%20365%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1213945%22%20slang%3D%22en-US%22%3ERe%3A%20Error%20sending%20automatic%2C%20external%20and%20internal%20(oof)%20messages%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1213945%22%20slang%3D%22en-US%22%3E%3CP%3EAs%20the%20message%20suggests%2C%20external%20replies%20seem%20to%20be%20blocked.%20Check%20the%20global%2Fper-domain%20settings%3A%3C%2FP%3E%0A%3CP%3E%26nbsp%3B%3C%2FP%3E%0A%3CP%3E%3CFONT%20style%3D%22background-color%3A%20%23ffffff%3B%22%3EGet-RemoteDomain%20%7C%20select%20Name%2CAllowedOOFType%3C%2FFONT%3E%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1213976%22%20slang%3D%22en-US%22%3ERe%3A%20Error%20sending%20automatic%2C%20external%20and%20internal%20(oof)%20messages%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1213976%22%20slang%3D%22en-US%22%3E%3CP%3E%3CA%20href%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fuser%2Fviewprofilepage%2Fuser-id%2F58%22%20target%3D%22_blank%22%3E%40Vasil%20Michev%3C%2FA%3E%26nbsp%3B%26nbsp%3BThank%20you%20very%20much%20for%20your%20help%2C%20below%20are%20the%20settings%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EPS%20C%3A%5CArquivosOffice365%26gt%3B%20Get-RemoteDomain%20%7C%20select%20Name%2CAllowedOOFType%3C%2FP%3E%3CP%3EName%20AllowedOOFType%3CBR%20%2F%3E----%20--------------%3CBR%20%2F%3EDefault%20ExternalLegacy%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-1215851%22%20slang%3D%22en-US%22%3ERe%3A%20Error%20sending%20automatic%2C%20external%20and%20internal%20(oof)%20messages%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1215851%22%20slang%3D%22en-US%22%3E%3CP%3E%3CSPAN%20style%3D%22display%3A%20inline%20!important%3B%20float%3A%20none%3B%20background-color%3A%20%23ffffff%3B%20color%3A%20%23333333%3B%20font-family%3A%20'SegoeUI'%2C'Lato'%2C'Helvetica%20Neue'%2CHelvetica%2CArial%2Csans-serif%3B%20font-size%3A%2016px%3B%20font-style%3A%20normal%3B%20font-variant%3A%20normal%3B%20font-weight%3A%20300%3B%20letter-spacing%3A%20normal%3B%20orphans%3A%202%3B%20text-align%3A%20left%3B%20text-decoration%3A%20none%3B%20text-indent%3A%200px%3B%20text-transform%3A%20none%3B%20-webkit-text-stroke-width%3A%200px%3B%20white-space%3A%20normal%3B%20word-spacing%3A%200px%3B%22%3EExternalLegacy%3C%2FSPAN%3E%3CSTRONG%3E%26nbsp%3B%3C%2FSTRONG%3E%20should%20work%2C%20but%20you%20can%20also%20try%20to%20set%20it%20to%20External.%3C%2FP%3E%3C%2FLINGO-BODY%3E
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New Contributor

I have an email box configured with automatic responses, and messages are being dropped by the office when it is sent, I searched all the docs and found nothing,

Error message:
Mar 6, 2020 10:22:51 AM
Receive
Message received by: FR1PR80MB2039
Mar 6, 2020 10:22:52 AM
Submit
The message was submitted.
Mar 6, 2020 10:22:52 AM
Receive
Message received by: FR1PR80MB4889 using TLS1.2 with AES256
Mar 6, 2020 10:22:52 AM
Drop
Reason: [{LED = 250 2.1.5 RESOLVER.OOF.SuppressExternal; external OOFs are suppressed}; {MSG =}; {FQDN =}; {IP =}; {LRT =}]
Mar 6, 2020 10:22:52 AM
Spam Diagnostics


attached image,

3 Replies
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As the message suggests, external replies seem to be blocked. Check the global/per-domain settings:

 

Get-RemoteDomain | select Name,AllowedOOFType

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@Vasil Michev  Thank you very much for your help, below are the settings

 

PS C:\ArquivosOffice365> Get-RemoteDomain | select Name,AllowedOOFType

Name AllowedOOFType
---- --------------
Default ExternalLegacy

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ExternalLegacy  should work, but you can also try to set it to External.