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Attachment size limit for On-Demand Email-to-Case

Julkaisupäivä: Mar 24, 2023
Kuvaus
Issue
 
The inbound Salesforce Email Server (MTA), currently has governing limits around attachment size and total email size (noted in Salesforce Help and other Articles).
 
On-Demand Email-to-Case configuration settings can be accessed by navigating to the 'Over Email Rate Limit Action' selection located within the following click path:

In Salesforce Classic: Setup | Build | Customize | Cases | Email-to-Case | On-Demand Service | Failure Response Settings
 
In Lightning Experience: Gear icon | Setup | Platform Tools | Feature Settings | Service | Email-to-Case | On-Demand Service | Failure Response Settings
 

Notes:
  • Based on the size and type of attachment, as well as On-Demand Email-to-Case configurations, the sender of the email receives a delivery failure notification from their MTA (Mailer-Daemon notification) indicating that the email could not be delivered.  
  • A Case is not be created from the email as it is returned to the sender.
 
Ratkaisu
When the inbound message redirected from the routing address exceeds 35 MB in total (Body/Attachments/HTML/etc.), depending on how the routing address is redirecting the email to the Salesforce Email Services Address, either the original sender of the email, or the routing address receives a Mailer-Daemon bounce.  
 
Note: Due to the encoding of emails, total email size when delivered can inflate up to 33%; So in actuality, the attachment size can range around 25 MB, depending on other factors of the email.

Before the Summer '14 release this maximum limit was 10 MB.
Before the Winter '21 release this maximum limit was 25 MB.
 
 
 
 
Knowledge-artikkelin numero

000386265

 
Ladataan
Salesforce Help | Article