Forum Discussion
Exchange 2019 SMTP random delays of 1 minute when sending email
Hello, We recently moved from a 3 server Exchange 2016 DAG to a single Exchange 2019 server. We are in a hybrid set up, all mailboxes in Exchange Online, mainly using the on-prem Exchange Server...
Dan_Snape it should have plenty of resources (6 core CPU, 32 GB RAM, health checker suggests 128 GB but that seems overkill to me) to handle the email. It is not handling a ton of email, less than 100 messages per hour. I am reluctant to think it is the network, as the network is not changing and at one point in the day, email moves quickly and at other times it takes that 1 minute delay for every message.
What about disk utilisation, including any virus scanning or other security products that might lock files?
Dan_Snape Hi Dan, we have Symantec antivirus on it but doesn't appear to be an issue (we had it on all of our old 2016 servers as well).
Did many tests on Friday and found no delays. Similar this morning but got one delay but right after the next few went fine.