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My email logs are filling up with bounced emails being sent from my domain with a From header formatted like so:

root@support@mydomain.com

What is causing this?


Full log entry:

Mar 13 14:05:09 ip-10-122-201-212 postfix/smtp[26788]: 4D21881CA8: to=<root@support@mydomain.com>, relay=email-smtp.us-east-1.amazonaws.com[107.20.142.169]:25, delay=0.12, delays=0.01/0/0.11/0, dsn=5.0.0, status=bounced (host email-smtp.us-east-1.amazonaws.com[107.20.142.169] said: 501 Invalid MAIL FROM address provided (in reply to MAIL FROM command))

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Your application is causing the problem. –  Michael Hampton Mar 13 at 15:19

1 Answer 1

up vote 2 down vote accepted
Invalid MAIL FROM address provided (in reply to MAIL FROM command)

When sending via SES, you need to set your From: header to one of the "verified" email addresses you configured when setting up SES for your AWS account.

You're setting your From: address to root@support@mydomain.com, which is an invalid email address. You need to set this to a valid email address that you've verifed through the SES console (or API).

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