Exchange 2013 logging event 15004 daily 5-10 times per day causing email delay?

Question

Observing following event in the Servers (3 Servers having multi role with Exchange 2013 CU5)
Log Name:      Application
Source:        MSExchangeTransport
Date:          15/10/2014 3:20:16 PM
Event ID:      15004
Task Category: ResourceManager
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      SERVER.COM
Description:
The resource pressure increased from Medium to High.
The following resources are under pressure:
Version buckets = 203 [High] [Normal=80 Medium=120 High=200]
Physical memory load = 92% [limit is 94% to start dehydrating messages.]
The following components are disabled due to back pressure:
Inbound mail submission from Hub Transport servers
Inbound mail submission from the Internet
Mail submission from Pickup directory
Mail submission from Replay directory
Mail submission from Mailbox server
Mail delivery to remote domains
Content aggregation
Mail resubmission from the Message Resubmission component.
Mail resubmission from the Shadow Redundancy Component
The following resources are in normal state:
Queue database and disk space ("C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Queue\mail.que") = 61% [Normal] [Normal=95% Medium=97% High=99%]
Queue database logging disk space ("C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Queue\") = 75% [Normal] [Normal=95% Medium=97% High=99%]
Private bytes = 2% [Normal] [Normal=71% Medium=73% High=75%]
Submission Queue = 0 [Normal] [Normal=2000 Medium=4000 High=10000]
Temporary Storage disk space ("C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Temp") = 75% [Normal] [Normal=95% Medium=97% High=99%]
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchangeTransport" />
    <EventID Qualifiers="32772">15004</EventID>
    <Level>3</Level>
    <Task>15</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-10-15T09:50:16.000000000Z" />
    <EventRecordID>36645321</EventRecordID>
    <Channel>Application</Channel>
    <Computer>SERVER.COM</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Medium</Data>
    <Data>High</Data>
    <Data>
The following resources are under pressure:
Version buckets = 203 [High] [Normal=80 Medium=120 High=200]
Physical memory load = 92% [limit is 94% to start dehydrating messages.]
The following components are disabled due to back pressure:
Inbound mail submission from Hub Transport servers
Inbound mail submission from the Internet
Mail submission from Pickup directory
Mail submission from Replay directory
Mail submission from Mailbox server
Mail delivery to remote domains
Content aggregation
Mail resubmission from the Message Resubmission component.
Mail resubmission from the Shadow Redundancy Component
The following resources are in normal state:
Queue database and disk space ("C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Queue\mail.que") = 61% [Normal] [Normal=95% Medium=97% High=99%]
Queue database logging disk space ("C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Queue\") = 75% [Normal] [Normal=95% Medium=97% High=99%]
Private bytes = 2% [Normal] [Normal=71% Medium=73% High=75%]
Submission Queue = 0 [Normal] [Normal=2000 Medium=4000 High=10000]
Temporary Storage disk space ("C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Temp") = 75% [Normal] [Normal=95% Medium=97% High=99%]
</Data>
  </EventData>
</Event>
Manju Gowda

Answer 1

hi manju.. this is because of your resource utilization being very high. please check below two links to check the logs and take appropriate actions
http://exchangeserverpro.com/exchange-transport-server-back-pressure/
http://technet.microsoft.com/en-us/library/bb201658%28v=exchg.150%29.aspx
Mark as useful or answered if my replies helped you solving your query.
Thanks, Happiness Always
Jatin
Skype: jatider2jatin, Email: [email protected]