如何配置SES与关联S3存储桶以正确存储非英文邮件字符？

Hey there, let's tackle that encoding issue you're facing with SES and S3. The d=C3=ADa you're seeing is quoted-printable encoding—SES defaults to this for non-ASCII characters when saving to S3, since it uses 7-bit ASCII by default. Here's how to get your special characters (like that í) showing up correctly in your S3 bucket:

Step 1: Adjust SES Receiving Rule to Use UTF-8 #

The key fix is updating your SES rule to skip quoted-printable encoding and save emails in UTF-8 directly:

• Head to the SES console, go to Email Receiving > Rules
• Select the rule that saves emails to your S3 bucket, then click Edit
• In the Actions section, find the "Save to S3" action and click Edit
• Expand the Content conversion settings:
  • Choose "Convert to UTF-8"
  • Uncheck the box for "Encode non-ASCII characters using quoted-printable"
• Save your rule changes

Step 2: Ensure S3 Object Metadata Uses UTF-8 #

SES should automatically set the correct metadata when saving emails, but it's good to verify:

• When SES stores the email in S3, it will set the Content-Type header to something like text/plain; charset=utf-8 (or text/html; charset=utf-8 for HTML emails)
• If you ever manually modify these S3 objects, don't change the charset=utf-8 part of the Content-Type header—this tells tools viewing the file to use UTF-8 encoding.

Test Your Setup #

Send a test email with your example text:

hola como estas como fue tu día mi amigo

Then check the corresponding object in S3. You should see the text exactly as sent, with día instead of d=C3=ADa. If you're viewing the file directly in the S3 console, it defaults to UTF-8, so it should render correctly right away.

Quick Note on the Encoding Issue #

That =C3=AD sequence is the quoted-printable representation of the UTF-8 byte pair for í. By disabling quoted-printable and forcing UTF-8, SES stores the raw UTF-8 bytes, which S3 handles seamlessly as long as the metadata is set to flag the encoding.

内容的提问来源于stack exchange，提问作者Ben Hall