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Email Attachments as Zip File using Salesforce Apex
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Jul 24, 2025
Blog Post: https://www.infallibletechie.com/2025/07/email-attachments-as-zip-file-using-salesforce-apex.html
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0:06
Hello everyone. In this video, we are
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going to see how to attach multiple
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files as a single zip file and send an
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email using Salesforce Apex. My use case
0:20
is very simple. I have files in
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Salesforce and I wanted to send an email
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with uh those files as one zip file. I
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don't want to attach them as single uh
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sorry as multiple files. I my recommend
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is to have only one single attachment
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which will contain all the files in it.
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So I have to zip it and into one file
0:49
and then I have to send it. Let's see
0:51
how to do that or achieve that using
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Salesforce Apex.
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In Salesforce Apex, we have
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compression.zip writer.
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Using this uh uh standard Salesforce uh
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class, we should be able to zip multiple
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uh uh files into one single uh zip file
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and then using single email message in
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Salesforce, we can send an email.
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There are multiple methods in
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compression.zip writer. I have shared
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the link
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uh Salesforce article link using which
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you should be able to see all the
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methods that are available in
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compression.ziper
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class. Here I have hardcoded the content
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document ids just for reference.
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uh but you can definitely dynamically
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fetch it and then you should be able to
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pass the content document ids.
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Okay. So here what I'm doing is I have
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initiated compression.zip writer. Next I
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have added two content document ids to
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this list.
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I am fetching content version using the
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content document ids and then using the
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add entry method I am passing the file
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name, the version data.
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Next I'm creating a blob.
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So using writer.get archive I will get a
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blob.
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So using single email message
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what I'm doing is I am making use of
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this blob as the body
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in the messaging email file attachment.
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I'm getting the blob and then I'm get
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I'm passing that blob as the body and
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then I'm sending an email.
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Let's test this code.
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So this is my developer edition or
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okay. So here we have to replace this
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with our email id.
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So if I execute,
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I should
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receive an email
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with zip attachment
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and uh the body should be
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test email notification in the email and
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the subject of the email should be zip
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testing.
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So this is the email I got it and I
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received that in a zip file. So this
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contains two files in this one's zip
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file.
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So make use of compression.zip writer
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class
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to zip multiple files and send as one
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single attachment.
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Please check the video description. In
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the video description, I have shared my
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blog post. From the blog post, you
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should be able to get the sample Apex
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code which was referenced in this video.
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I hope it was helpful.
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Thank you for watching.
#Email
#Internet Software
#Programming