Phone is sending out spam email

Question

I have been receiving email messages notifying me that multiple messages that I sent to addresses I'm not familiar with were undeliverable. I did not initiate these emails . I have also noticed a marked decrease of battery life.
I completely erased and reinstalled the ios and apps hoping to get rid of whatever is infecting muy phone but it appears that it is still doing it. Any one know of a fix or good antivirus app for my 4s phone? Thanks. ~Steve~

Answer 1

This is not likely caused by your iPhone. Either your computer has been compromised and your email client there is filtering these messages or maybe more likely, spammers are simply using your email address as the "reply to" address in their emails. When they send to an unknown address, the error message comes back to you.
In any casem you should scan your computer for viruses and other malware to be sure it isn't originating there. also check your sent email box as that will be one indicator of whether your computer has been compromised.