Hey!
I have an issue with an Exchange server of a customer.
Since a reboot after the installation of Rollup 21 for Exchange 2010 SP3, mails are not delivered to certain external mail addresses.
Even within the same domain (example support@client.nl works, but my own mail address doesn't).
If I add the e-mail address as a mail contact in Exchange, it starts to work immediately.
I have created an example.
Sent first mail
mail from:########@#######.nl
250 2.1.0 Sender OK
rcpt to:########@client.nl
250 2.1.5 Recipient OK
data
354 Start mail input; end with <CRLF>.<CRLF>
testmail
.
250 2.6.0 <6f77ca68-1df7-486e-b796-78ed7be0d48e@MAIL01.######.lan>
[InternalId=35120] Queued mail for delivery
This gave the following result
PS C:\Users\client> Get-MessageTrackingLog -MessageID 6f77ca68-1df7-486e-b796-78ed7be0d48e@MAIL01.######.lan
EventId Source Sender Recipients
MessageSubject
------- ------ ------ ----------
--------------
RECEIVE SMTP ########@######.nl
{#####@client.nl}
FAIL ROUTING ########@######.nl {#####@client.nl}
If I look at the details, it says that the recipient is not found:
Timestamp : 25-7-2018 9:46:49
ClientIp : 127.0.0.1
ClientHostname :
ServerIp : 127.0.0.1
ServerHostname : MAIL01
SourceContext : 08D5F0C6F702A99F;2018-07-25T07:46:08.551Z;0
ConnectorId : MAIL01\Default MAIL01
Source : SMTP
EventId : RECEIVE
InternalMessageId : 3662
MessageId : <bbd8f0c6-bfb9-46cf-a7ab-cf38465686f3@MAIL01.######.lan>
Recipients : {#######@client.nl}
RecipientStatus : {}
TotalBytes : 937
RecipientCount : 1
RelatedRecipientAddress :
Reference :
MessageSubject :
Sender : client@######.nl
ReturnPath : client@######.nl
MessageInfo : 00A: NTS:
MessageLatency :
MessageLatencyType : None
EventData : {[FirstForestHop, MAIL01.######.lan]}
Timestamp : 25-7-2018 9:46:49
ClientIp :
ClientHostname : MAIL01
ServerIp :
ServerHostname :
SourceContext :
ConnectorId :
Source : ROUTING
EventId : FAIL
InternalMessageId : 3662
MessageId : <bbd8f0c6-bfb9-46cf-a7ab-cf38465686f3@MAIL01.######.lan>
Recipients : {#######@client.nl}
RecipientStatus : {550 5.1.1 RESOLVER.ADR.RecipNotFound; not found}
TotalBytes : 1089
RecipientCount : 1
RelatedRecipientAddress :
Reference : {<75cf713f-5a9c-44a1-b652-3d7866a9332a@MAIL01.######.lan>}
MessageSubject :
Sender : client@######.nl
ReturnPath : client@######.nl
MessageInfo :
MessageLatency :
MessageLatencyType : None
EventData :
After I added the recipient as a mail contact in Exchange everything worked (sent testmail)
mail from:########@#######.nl
250 2.1.0 Sender OK
rcpt to:########@client.nl
250 2.1.5 Recipient OK
data
354 Start mail input; end with <CRLF>.<CRLF>
testmail
.
250 2.6.0 <d6ae108f-6ffd-4780-a198-50de727485dd@MAIL01.######.lan>
[InternalId=35124] Queued mail for delivery
This gave the working result
PS C:\Users\client> Get-MessageTrackingLog -MessageID d6ae108f-6ffd-4780-a198-50de727485dd@MAIL01.######.lan
EventId Source Sender Recipients
MessageSubject
------- ------ ------ ----------
--------------
RECEIVE SMTP ########@######.nl
{#######@client.nl}
SEND SMTP ########@#######.nl
{#######@client.nl}
Please mark answer as proposed answer if my solution works for you.