An e-mail box or mail program with a spam filter protects against spam.
A combination of both is much more effective.
Spam senders use special programs (robots, harvesters) to automatically search the entire World Wide Web for mail addresses.
Attention, Fellow Webmasters!
Your Meta Tags will also be scanned!
Enter a fictitious mailbox in the meta tag and on the page «Contact» as well as the provider identification («Site Notice») the real mail address only as graphic with a link to the e-mail form (!). According to the current state of knowledge, robots cannot use this yet.
Or write the e-mail address with spaces and replace @ and the dot with a paraphrase. But then a short explanation for beginners, who do not know the topic yet.
I used to store and protect web addresses including e-mail addresses in my link collection, but effort and responsibility are now too high.
This makes it more difficult for spammers to find valid e-mail addresses.