"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 check that an Android device isn't being used in a botnet / sending spam emails?

I've discovered that my home network IP address has ended up on several blacklists after spam traps received emails from this IP address. I've tested the one PC that uses this network, and it seems to ...
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84 views

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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2k views

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 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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571 views

Undo “Flag as spam” on Google Play Store?

I've accidentally marked some reviews for some apps as spam, and they were removed (or were hidden from me). The problem with clicking on this button is that there is no going back. It doesn't ask ...
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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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346 views

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 ...
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How to block specific callers on Motorola Moto G?

I have a Motorola Moto G, about 2 years old, with Android version 5.1 I normally don't get many spam calls, but yesterday I accidentally clicked on an ad that linked me to a site that my antivirus ...
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72 views

MMS from Unknown Numbers and from “Contacts”

I have been receiving random multimedia messages from random numbers and from my contacts (but they aren't sending me anything) on my phone for a couple of months now. It's a 1kb file that never ...
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300 views

App sending spam messages to my contacts

My phone sent the following message to all of my contacts: Install this voice messenger just to talk http://mrv.withmechat.us/Cun I know I didn't send this message and not to mention it sent it ...