I have two email account, one under local service provider and another with domain web hosted by some service provider. I faced a lot of problems on emails these few month. Some emails i sent never received by recipient and some email that i suppose to receive never appears in my outlook. I have tried to do a statistic whcih email and what kind of email, but no trace at all. few emails to same recipient end up some ok some not ok. i have asked many IT guys and they said if the message has sent out and gone to sent folder, it couldnt be anything wrong with my hardware problems and it should be the webhosting, blocked due the virus/malware/spam. PReviously i have same problem which was more minor only few email couldnt be received and always i will get return/error message but not this time. It is major 40-50% of the email has problem and i never received a single return message.