External e-mail issue following Exchange 2013 CU12 upgrade
Hi everyoneWe recently upgraded our two Exchange 2013 servers to CU12, but since then we have had some issues with incoming external mail being delayed. Our Exchange setup is below:MailServer1 - CAS...
View ArticleEmail flow betwen On premises and Exchange online
Dear Folks,A customer is running with Exchange 2010 SP3. for outgoing emails, it submits emails to Smart Host and for Incoming emails it lands to Yahoo as MX points to Yahoo DNS and through a POP...
View ArticleUser never received an email which was sent
Exchange 2013 File Version 15.00.1104.005An email was sent but the user necer received it.Message tracking says the following:HAREDIRECTASK.research@domain.com5/17/2016...
View ArticleMessages Rejected by some Spam Filters
We have Exchange 2013 in production. Recently some users complaining about their email delivery. Some of the external domains just rejected our email and by this we didn't get any bounce back messages....
View ArticleMessages sent from Outlook 2016 (Mac) appears as drafts in sent folder
When users sends an email from their Outlook 2016 Mac it ends in sent folder as a draft.The mail does not appear like a draft in Outlook 2016 Mac but it does in Outlook for Windows and Outlook Web...
View ArticlePublish to GAL button not available
Hi I'm trying to assign an email certificate to about 5000 users that have their exchange environment on a different domain to their user accounts. When I try to publish to GAL it works only if the...
View Articleunable to send message internally from exchange 2013
Hi All,We have Single AD site where we have Datacenter 1 and Dtacenter 2.In DC 1 we have 2 Mailbox/CAs server and in DC 2 we have single CAS/MBX server.All server are member of DAG.Now the issue is...
View ArticleHardening Exchange 2013 Hybrid Receive Connector
Hi, When creating a hybrid deployment you are required to configure a recieve connector so Exchange online can send E-mail to Exchange on Prem. How do I secure this connector so that only office 365...
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MAIL FROM: FAKE
Hello everybody, *I manage an a exchange cluster 2013 CU7 installed windows server 2012 platform in single role, CAS/MBX separately and I am having trouble with excess of spam out of my maibox servers....
View ArticleExchange Server 2013 - Removing part of email subject
We are running Exchange Server 2013 – Enterprise edition. Currently we have an inbound content filtering rule on our Symantec Messaging Gateway appliances to where when an email arrives from the...
View ArticleExchange 2010 The remote pipeline has been stopped. It was running the command
Hello,Our Exchange 2010 server message queue keeps reporting the following error The remote pipeline has been stopped. It was running the command 'get-message -ResultSize '1000' - ReturnPageInfo $True...
View ArticlePublish to GAL button not available
Hi I'm trying to assign an email certificate to about 5000 users that have their exchange environment on a different domain to their user accounts. When I try to publish to GAL it works only if the...
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Email from Office365 can't reach On premise mailboxes in Hybrid Exchange 2010
Dear Exchange Expert,Currently we are implementing the Office 365 Hybrid in our environment which is running Exchange 2010. We have finished the HWC and we are now migrating the first pilot test...
View Articlewhy Email going to junk folder
Hi everyone, i have SharePoint server , i am configure it to send email via exchange . some users complain to me they are receiving emails in junk folder , i want to know the reason and prevent this...
View ArticleTLS Enabling
I have a client who is dealing some business with a bank and bank asked them that they need to have TLS enabled on their exchange server for them to send email to us and vice versa.We are using Cisco...
View Articlethe SMTP traffic from specific domain not hitting my server
Hi everyone, I have issue that i am not able to receive from particular domain, also there is no NDR , and also there no log in my server i am asked the sender to send me email in my Gmail account and...
View ArticleExchange 2013. How to force SMTP authentication for Authoritative Domains.
I've found that in Exchange 2013 I am able to send email FROM a local account, TO a local account, and have the server not ask for any authentication. I want to lock this down, but I can't find a...
View ArticleExchange 2013 Send Connector Logging broken
Hi, I have a client that is migrating from Exchange 2007 to Exchange 2013 and after the Exchange 2013 installation, I am not able to see any details of the send connectors in the right side details...
View Article500 5.3.3 unrecognized command issue
Hi all, My client has an issue where random senders within, and outside of the organization will receive a "Remote Server returned '500 5.3.3 Unrecognized command' error when sending mail to a certain...
View ArticleAutodiscover Vulnerability question - Exchange 2010 SP3 CU13
Hi, please can you let me know how you have protected against the "Autodiscover Enumeration Vulnerability". My current thoughts are around using an irule on an F5 LTM but am unsure if there is a...
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