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- To avoid falling victim to phishing attacks, never click any link or open any attachments from a message claiming to come from a mail delivery subsystem. An original message from this kind of system won't contain a link to click or files to open. Likewise, always check the address from where the mail bounce message comes.
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Why am I receiving messages from the mail delivery subsystem?
Are mail delivery subsystem messages a scam?
How do I know if a mail delivery subsystem email is legitimate?
What is mail delivery subsystem?
May 9, 2024 · If your Mail Delivery Subsystem email indicates that the address, mailbox, user, domain or host is not found, unknown, unavailable or unrouteable, then you likely made a mistake when typing it. Here’s what you can do:
- Mailer-daemon@googlemail.com
- Why Does Mail Delivery Subsystem Send You emails?
- Address Not Found
- Message Blocked
- Error Codes
If you are using Gmail (this doesn’t necessarily mean you’re using an @gmail address), you may get an email from Mail Delivery Subsystem, whose email address is mailer-daemon@googlemail.com. This is an email from google mail itself.
You may get one or more emails from Mail Delivery Subsystem due to a problem with an email you have sent. This message is known as a “bounce message” because instead of being delivered, the email “bounced” back to you. For example, I recently received two Mail Delivery Subsystem emails after sending a couple of calendar invites. If you have receive...
This is another common message type from Mail Delivery Subsystem. It usually indicates a problem with the address, such as some part of the address being mistyped. Similar messages may have a different wording: 1. Mailbox unavailable 2. Unknown user 3. Unrouteable domain 4. Host unknown
This means your message was blocked for some reason. This can happen when you add too many recipients to CC or BCC or if you have a “suspicious” looking URL link in your email.
The message from Mail Delivery Subsystem may contain an error code. This code can be accompanied by a message. Codes in the 400s usually indicate a temporary issue, and those in the 500s mean that something will need to be done/changed in order for the sender to receive your email. For the email I received, the message was: This tells me pretty muc...
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Oct 12, 2023 · We understand that you're receiving Mail Delivery Sub-System (failure) notifications in your email account. These errors are usually sent when an email you sent failed to be delivered to the recipient's email address.
Are you getting spam messages from Mail Delivery Subsystem in your Gmail inbox? Find out how to report and block them in this Gmail Community thread. Learn from other users who have faced the same issue and get tips from Google experts.
Jun 27, 2023 · While most mail delivery subsystem messages are legitimate notifications about delivery issues, it's possible for spammers to forge these messages in an attempt to trick you. Always be cautious of unexpected messages and never click on suspicious links.
Here are screenshots of a legitimate email from Mail Delivery Subsystem that I received recently for comparison: How is this possible? I definitely did not send that email and I'm pretty sure my gmail was not accessed by someone else (Google would have alerted me). This is the first time I see this.
