[SalesForce] Maximum size of attachments in an outgoing email

I am using Apex to send emails with attachments to users.

For incoming emails, I know the maximum size of the email, including the attachment, is 10 MB. Email which are above 10 MB are not processed by Email Services and are rejected with an email response back to the sender.

However, I am having trouble determining the maximum size for outgoing emails. I've heard there's a 3 MB limit but haven't seen this documented.

  1. Can you all confirm an outgoing limit on email or attachment size?

  2. What happens when the limit is exceeded? What kinds of errors would I see?

  3. Is there any way to send emails more than this limit without leveraging any appExchange tool? Any ways?

Thanks in advance.

Best Answer

According to my R&D outgoing email attachment size 5 MB but still some issue if we have to attach more then 3 MB file it send but it converted in .html.In Spring '15' Release note also not define the outgoing email attachment size. I think attachment size depending on different 'Salesforce Edition' which you have use.

Email to Salesforce For all editions:

• Email body truncation size: 32 KB
• Maximum number of email activities created for each email received: 50
• Maximum size of a single file attachment: 5 MB
• Total maximum size of file attachments: 25 MB

Above point Email to salesforce but you can see in also in following link and not specify limit for email service.

https://ap1.salesforce.com/help/pdfs/en/salesforce_app_limits_cheatsheet.pdf https://help.salesforce.com/HTViewHelpDoc?id=limits_email_general.htm&language=en_US

If you have have use other third party tools like Mandrill Email Service then you can use more size of attachment compare to salesforce.

I hope this might be useful for you if i wrong then please correct me.

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