SSL & TLS errors
HiWe have exchange hybrid with 3 CAS and 3 Mailbox Servers . We can see the following errors is generated from 'system' section of windows category logs.In two cas serversThe error isA fatal alert was...
View ArticleMails are not getting received
Hi,We use Exchange 2010 Standard. We have one mailbox server and one hubcas server. I am posting here, if this is not the suitable place, please move it to the required forum.There is no edge...
View ArticleMails rejected for none spf
I have an SQL server on whicn I use dbmail. I have configured an internal relay connector om my exchange server.Mail are rejected some places. In the NDR mail I see that my private IP addresses for my...
View ArticleTransport Rule Exceptions list not working fully
HelloI am wanting to use a transport rule to help our users identify email originating from outside of the domain. In this rule I have prepended the Subject line with "External" and also prepended the...
View ArticleMail Flow Issue
Hello if some body can help , my emails from our domain are going directly to junk emails folder in the recipients mailboxeshow can I fix that , I doubted that it's form the email signature ,so I tried...
View ArticleTransport Rule Exceptions list not working fully
HelloI am wanting to use a transport rule to help our users identify email originating from outside of the domain. In this rule I have prepended the Subject line with "External" and also prepended the...
View ArticleHow to add a proxy email address to delivery management for a mail-enabled...
Hi,We have a mail-enabled security group which they need restricted as to who can email it. I've been asked to add a proxy email address (which sits on a user account here) however I can only seem to...
View Articlerejected messages
We running exchange 2013 on prem and in hybrid mode with office 365. We use barracuda essentials for spam and archiving. We have been seeing a lot of rejected messages in the logs of the Essentials...
View ArticleMessage trace details
What is the meaning of below custom_data in Message TraceS:PCFA=OCAT|dkim=0 S:DeliveryPriority=NormalS:AMA=EV|engine=A|v=0|sig=201902060009|name=|file=|hash=|phash=...
View ArticleDelay from office 365 to On-Prem
I currently have a Hybrid setup with Office 365 with students in the cloud and teachers On-Prem. Lately i have been noticing issues with O365 users sending emails to On-Prem. O365 Mail can sometimes...
View ArticleEmails are not going through
Hello GuysI have a problem with my exchange server, all services are running, the database it is mounted and when I connect to outlook it shows connected but when I send the email it doesn't go through...
View Articleaccepted domain
Hello,I migrated one Exchange domain to office 365 (export pst-->import pst to office 365)After deleting accepted domain for this domain in Exchange,local users from other domains on this Exchange...
View ArticleOutbound emails from one specific email address blocked by Exchange 2013
HiWe have a hybrid environment Exchange Online and are using Exchange 2013 as hybrid server. We have an application that submits emails to Exchange using SMTP and sends emails from...
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Receieve connectors Exchange 2016
In Exchange 2010, we had 4 receive connectors to secure our SMTP traffic.Internet, allowed anonymous access, and in the remote IP ranges the IP's of MessageLabs where configured (so was only accessible...
View ArticleOpening Encrypted Emails with Exchange Account or Microsoft Account
We have what may be a unique situation and I am hoping someone might be able to provide some assistance. Our company is using Office 365 with a login of user at syr.companyname. However, our email...
View ArticleTo allow email from one external email address only for all DLs
Hi Team,Anyone can suggest me on this we have one external email address and we want to allow the internal DLs to accept emails from this external email address and we don't want to remove require...
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450 4.4.318 Connection was closed abruptly
Hello,I am getting below error while sending email to a group that contain more than 100 Users. This distribution group is allowed to accept email from outside. Our email first land on EOP and then...
View ArticleHo to prevent spam from authenticated users?
Hi guys, I'm having some issues lately with users getting their smartphones infected anse sending a lot of spam to external addresses via our exchange system. This leads to blacklisting and mass...
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