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View ArticleExchange 2013 - SMTP service hangs and stops receiving emails when using all...
Hello Everyone..I'm new to the exchange world and was given a project to upgrade our exchange 2007 server to 2013 then eventually to 2016, but I've run into some issues. I'm currently running Exch13...
View ArticleEmail stuck in inbound Queue Exchange 2013
I am so close I can taste it! Argh.I just built a new 2013 server, I can send outbound to domains fine, but when I try and reply I'm seeing the email stuck in the queue. I'm running this on a server...
View ArticleExchange 2013 can't send email to external users such as xxx@outlook.com
Hi Experts,I have configured an Exchange server 2013 in an Azure virtual machine for test purpose. However, I can't send email to ANY external users such as xxx@outlook.com. I run the powershell...
View ArticleOutlook 365 user didn't receive emails for over 4 hours but was able to send
Hi, I have an O365 user that came in one morning with about 10 new messages from the afternoon before. She had left at 4:30 the day before and didn't have anything in here inbox after 12:02 p.m. but...
View ArticleUser not able to send from an alias email address
Hi there,We have an exchange server 2012 fully patched that is rejecting emails that the user sends from an alias that is attached to his mailbox. The error is one that is associated with a mailbox...
View ArticleShannel 36887 - Missing Certificates in Trusted Root Certificate Authority Store
Hi All I recently expanded from a single Exchange 2013 server to a 4-node exchange DAG with Server 2012R2 Exchange 2013. I have a GoDaddy cert installed on all 4 servers for IIS, SMTP etc. I have...
View ArticleDigicert and sent items
I have implemented Digital Signing and I just noticed that in my sent items folder, the e-mails are displaying a yellow lock in the icon column. All sent items stay with a yellow lock all day. The...
View ArticleOutbound messages from Exchange show internal mail server FQDN
HiI have noticed that the internal FQDN/computername shows up as the 'received from' server when I check the headers of an email sent from my Exchange servers.The reason I am investigating this is...
View ArticleExchange issue with one external domain
I have a strange issue with our 2013 Exchange. All internal users are getting these return errors if they send to one ( and only one) external domain. These emails work from personal email ( yahoo,...
View ArticleExchange Server 2010 one O365 user didn't receive emails for over 4 hours
Hi, I have an O365 user that came in one morning with about 10 new messages from the afternoon before. She had left at 4:30 pm the day before and didn't have anything in here inbox after 12:02 p.m. but...
View ArticleExchange issue with one external domain
I have a strange issue with our 2013 Exchange. All internal users are getting these return errors if they send to one ( and only one) external domain. These emails work from personal email ( yahoo,...
View ArticleError Exchange 2013 + Exchange Online
I am having a problem where the user who has access to the shared mailbox that is in the microsoft exchange online is trying to send an email with an attachment to the users of the local mailbox, but...
View ArticleRouting Address - Hybrid Scenario
Hello everyone. We have a specific user with some SMTP adress problem. He's a Remote Mailbox user and he only receives emails in his routing address (%@#@domain.mail.onmicrosoft If I send an email...
View ArticleEmail forwarding from One exchange forest to another results in SPAM
I have set up email forwarding on testmailbox@abc.com (Which is a separate exchange forest) towards testmailbox@xyz.com (O365 hybrid different forest).Condition-1: - If i send an email from Gmail to...
View ArticleExchange 2013 On Prem - OOTO / NDR Replies Fail DMARC Authenication Outbound
Overview - 3 On Prem Installations of Exchange 2013 on Server 2012 R2 in a DAG configuration. All exchange boxes are running build 1367.3.Issue - Automatic Replies (Out of the Office) and NDR responses...
View ArticleExchange - blocked SMTP communication to Domain Controller
Hello,I have a problem with blocked SMTP communications from Exchange Server to domain controllers.Do not you know why Exchange Server wants to communicate using SMTP with a controller? Thanks for help
View ArticleMail being Queued because server busy for hosted Microsoft Domains
Today I noticed that mail for dozens of domains that are hosted on microsoft were sitting in the que with 451 4.7.500 Server busy. In checking the mx records they all were company name then...
View ArticleSet auto reply for messages, sent to specific accepted domain
Hi,we have an exchange server 2013, which handles the messages for two accepted domains, let's call them domain1.com and domain2.com. This occurred after the acquisition of another company, which...
View Article554 5.7.1 This message has been blocked because the HELO/EHLO domain is...
Hi Guys,We have Exchange 2013 standard with latest CU installed on our premises, but we are facing an error with one specific domain.When a mailbox in an specific domain send a mail to one of our...
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