Today I noticed an unusual amount of bounced emails. Initially I thought they were just spam mails so I just marked as spam and deleted them.
But more and more emails started to appear in my inbox. Some were bounced, some quota full, some vacation reply, some verification. Very strange.
So I took a look at them and found that all the mails were for one of my domains - freebizware.com.
It struck me that spammers are hijacking my domain to fake the From: address! Here are some examples,
They were even generating random usernames and names.
I considering implementing SPF in my mail server. But I want to see if there are other ways to stop this from happening.
Do you have a similar experience? How do you deal with this?
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