CAS server NLB cluser
Dear all,in my organisation we have 2 cas, 2 mbx servers. 2 cas servers are in nlb cluster, and use one unique ip adress.Internal and public DNS and ASA firewall is setup to target/nat...
View ArticleEmails delays caused by connection timing out?
Hello,I'm kind of stump here. We're getting, on average an 18 second delay when an internet forum is trying to send an email through the Exchange 2013 server. It happens once awhile but it seems to...
View ArticleError returned from SMTP Server. The error message was: [Exception reading...
Hello Folks, Having a very strange issue , We have a Cognos Application server (IBM Cognos) through which user used to send an email in bulk with excel attachements so what is happening like there are...
View Articlemigration Lotus Notes to Exchange, how to migrate confidential emails (in LN...
Hi,we're investigating a migration of Lotus Notes to Exchange. One issue is the migration of encrypted mail. How to keep them confidential in Exchange?We have users like a secretary that has read/write...
View ArticleExchange 2010 Partner Domain Send Connector refuses messages from O365 Hybrid...
I'm running a Hybrid Exchange 2010 / Office 365 environment and am in the process of migrating our users from on-premise to O365.On my premise Exchange 2010 server, I have some specific Send Connectors...
View ArticleMicrosoft Exchange 2016 DAG on HyperV has cluster failover
Dears,Ihave the two Microsoft Server 2012 Data Center with HyperV roles install on both, and the Two nodes servers configure as Fail-over cluster "Share Storage" , and I create two VMs "one per Node...
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Error 451 4.4.0 & 400 4.4.7 only in gmail.com
Hi.... We are using MS Exchange Server 2013 on MS Windows Server 2012 Standard. In queue viewer, I am getting this error for gmail.com ( 451 4.4.0 DNS Query Failed.......) And if we look at the...
View Article550 5.7.1 Sender ID (PRA) Not Permitted
Hi all, This is the below situation : A customer fill in a form on our web site and have to specify his @mail. Once the form validate, an entry is generated in our CRM. A mail is sent to a specific...
View ArticleExchange 2013 CU15 Update - Unable to relay
Hi people.We have a problem after update Exchange with CU15. We should update to federate some domains against Office365. After the update, no server could send alerts or some applications mails.We...
View ArticleTransport rule based on content from HTML formatted emails
I've been trying to catch some really pesky spam from .RU that contain links in this format: http://username.somedomain.ru/?53245abunchofnumbers342342I've been trying to inspect them using text...
View ArticleCan't recieve or send mails outbounded mails
Dear Exchange-experts,I can't send to other domains than mine domain, and I also don't recieve e-mails from other domains. My DNS records are correct. My ISP blocks port 25 by default so I obtained to...
View ArticleRelay Access Denied
Hi!Our Exchange 2013 Server trying to send messages to a domain but in the queue viewer it says "Last Error: 454 4.7.1 Relay Access Denied". We are not trying to relay anything through their email...
View ArticleEmails Stuck in OWA drafts
Dear all,I have a exchange 2013, all emails are stuck in the draft in OWA and it didn't sentalso in the queue all emails didn't go throughtransport log shows the followingfailed to connect, Winsock...
View Articleoutbound Queue full of emails nobody sent with 400 4.4.7 and 441 4.4.1
testing EXCHANGE 2016 DEV example:Identity: EX1\29075\6682969112595 Subject: Undeliverable: Check Worrying Off Your List. Start the New Year Right With Term Life. Internet Message ID:...
View ArticleEmail Jam in the Journaling Queue
We have random emails mostly, it looks like just spam that keep getting jammed up in the "Journaling Queue" with the following error;“Last Error: 400 4.4.7 The server responded with: 550 5.6.2...
View ArticleExchange 2013 - Unable to send email, Internally & Externally
Hi,I have new testing lab to play around with which is starting to drive me insane. I have exchange 2013 and outlook 2013. I can receive emails from external domains but I am unable to send emails...
View Article550 5.4.4 Error when using Contact to Relay mail
Hi!I have a customer who would like to use contacts to relay mails to external partners working for him. The problem is that when we send mails to this contact the sender receives a NDR with the code...
View ArticleMessage tracking log "MSGTRKMD" automatically deleted before 30 days in...
Hi We have enable message tracking for 40days, but MSGTRKMD files automatically deleted after 20 to 25 days once it rechaed the all file size near 1GB.due to this we are unable to see complete delivery...
View ArticleOutlook 2016/2013- Not able to connect to Exchange 2013 from External or...
Hello All,I am having problem connecting to our Exchange 2013 from Outlook 2016 application running on external PC (outside LAN) or internal PC but not joined to Domain using auto-discovery. However...
View ArticleHow to check Load Balacer IP address in Exchange
Hi All,We are using Exchange 2013 servers as 2 mailbox server's and 2 CAS servers.We are using F5 load balancing for exchange, My security team introduced new F5 for F5 failover purpose.My security...
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