How to Block Not My Email

Question

How to stop receiving emails that begin with my email address but then says via? I go to my spam to block emails but I have emails that begin with my email address but at the end says via some other email. I.E ******@hotmail.com via notcoin.mohsen.sbs. When I try to block it it says I can not block myself but it is not me.

Answer 1

Those messages are coming from other senders that are spoofing the address and showing as “******@hotmail.com via …”. Outlook treats them as if they are from the own address, so a direct “Block sender” fails with “you can’t block yourself”. Use junk settings and rules instead of trying to block the own address.

Use one or more of these approaches:

1. Turn on junk filtering and let Outlook handle spam

• In Outlook on the web / new Outlook for Windows:
  1. Select Settings (gear icon).
  2. Select Mail > Junk email.
  3. Make sure junk filtering is enabled (do not choose “Don’t move email to my Junk Email folder”).
• In classic Outlook, junk mail is filtered automatically and moved to Junk Email.

2. Block the real sending domain instead of the own address In many spoofed messages, the visible “From” line shows the address, but the real sender domain is the part after “via” (for example, notcoin.mohsen.sbs). Block that domain:

• Outlook on the web / Outlook.com:
  1. Select Settings > Mail > Junk email.
  2. Under Blocked senders and domains (or Blocked domains), select Add blocked sender / Add.
  3. Enter the domain shown after “via”, for example: notcoin.mohsen.sbs.
  4. Select OK (if shown), then Save.
• Outlook Web App (work/school):
  1. Select Settings > Mail.
  2. Under Accounts, select Block or allow.
  3. In Blocked senders, type the domain (for example, notcoin.mohsen.sbs) in Enter a sender or domain here, then press Enter or select the Add icon.
  4. Select Save.

Future messages from that domain will go directly to Junk Email.

3. Use Safe Senders so wanted mail is never treated as junk To avoid missing legitimate mail while junk filtering is active, add trusted contacts and domains to Safe senders and recipients so their messages always stay in Inbox:

• Outlook on the web / Outlook Web App:
  1. Select Settings > Mail > Junk email or Block or allow.
  2. Add trusted addresses/domains under Safe senders and recipients.

4. Use “Block Sender” from a message when it’s not the own address When the sender is not spoofed as the own address:

• Classic Outlook for Windows / new Outlook:
  1. Right‑click the message.
  2. Select Junk > Block Sender.
• Outlook for Mac:
  1. Select the message.
  2. On the menu, select Message > Block (or Message > Junk Mail > Block Sender).

This adds that sender to the Blocked senders list and moves future mail from them to Junk Email.

5. Periodically review Junk Email Because blocking domains and aggressive filtering can sometimes catch legitimate mail, periodically open the Junk Email folder and review messages. If something is not junk, mark it as Not Junk so Outlook learns and moves it back to Inbox.

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References:

• Block or allow (junk email settings)
• Block a mail sender
• Block or unblock senders in Outlook
• Filter junk email and spam in Outlook
• Block or unblock a sender - Outlook for Mac