Member Avatar for firdousahmad

How is possible for an internet to send messages to an email

Edited by Dani because: Moved to Networking
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A short clarification for : the internet does not "decide" to send mail by itself. People, scripts, or compromised devices run mail-sending software that uses the network to move messages from one server to another. was right that the internet is just the transport and pointed toward the mail-transfer mechanism used for delivery (see SMTP in RFC 5321).

How spam is usually sent: attackers run mass-mailing software on compromised PCs or IoT devices (botnets), use stolen accounts or poorly configured mail relays, or buy bulk lists. They may also forge the From address so a message looks like it came from someone else. If spam appears to come from a specific account, check whether that account or a machine on the network is actually sending mail, or whether the sender address is simply being spoofed.

Quick, practical steps:

  • Check the account's Sent folder and your mail server logs for outgoing SMTP activity; that shows whether messages were sent from the account.
  • Change passwords, enable two-factor authentication, and scan all devices for malware.
  • Mark unwanted mail as spam in the client so filters learn, and do not click links in suspicious messages.
  • For domain admins: close open relays, require SMTP authentication, publish SPF (RFC 7208), sign with DKIM (RFC 6376) and publish a DMARC policy (dmarc.org). Use content filters and tools such as Apache SpamAssassin (https://spamassassin.apache.org/) and RBLs to reduce incoming spam.

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Member Avatar for CimmerianX

Not sure what you are asking here. The 'internet' is the medium through which data traffic propagates. Emails messages are sent from one email server to another.

Member Avatar for JorgeM

Messages are sent between SMTP servers over port 25. Mail clients communicate with mail servers to access mail..depending on the access, different ports can be used. We need more clarification about your question.

Member Avatar for firdousahmad

have not u people got the spams these r the mails which internet send itself to any email..........

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