"Spam" is the use of electronic messaging systems to send unsolicited bulk messages, especially advertising, indiscriminately. While the most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media, such as mobile phones.

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How to report a contact as spam in Whatsapp?

I received a message from a new phone number about some advertising information. When I opened the message I saw "Report Spam" option to report the spam to whatsapp. However once I replied to that ...
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How to block texts received from numbers that are longer than n digits?

In South Africa, we are plagued with SMS spam, and it's practically impossible to get rid of it. All the numbers that the spammers use are usually 13 or 14 digits - much longer than the standard 10 ...
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how to check DKIM signatures in emails

I'm looking for a gmail-compatible app that can check DKIM signatures on incoming emails. Also, i'd like my outgoing emails to be signed correctly, so they are less likely to be filtered as spam... ...
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sms anti-spam application compatible with android 4.4 & hangouts?

I want to block spam sms, at the same time I want to keep using hangouts for sms. Is it possible? What application should I install?
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How to undo “flag as spam” for the Google play store?

It's a simple and short question: I've accidentally marked some reviews for some apps as spam, and they were removed (or were hidden from me). How can I undo my mistakes? The problem with clicking ...
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How to block SMSs from certain “named” senders?

There are many tools around to block unwanted SMSs. Samsung Galaxy S3's Jelly Bean offers a native call&sms blocker too. But some senders are not phone numbers, they are alphanumeric strings. I ...
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Got text message with 'download' button, how would I look at the link source or gain further info to see if this is safe? 2.3.6metropcs

In the 'messaging' app that comes standard with metropcs, I received a text message that had 'no subject' and was just a download button. I know the person, so there is no need to mention not to trust ...