Quick questions

 

You have received message about the undelivered email that appear to originate from your email address. In addition the name of your computer or provider mentioned in such message is wrong. Don’t pay any attention on such letter, it wasn’t sent from your email address – it was sent by spammers.

 

Unfortunately it’s possible to forge the sender address. If the receiving server does not make additional checks (SPF, DKIM) it’s possible to send letter from any email address.

 

The mail server having rejected the letter can send to the sender the bounce message of non-delivery (Non-Delivery Report, NDR). Since the address of the sender is forged, the user can receive set of messages on non-delivery. Such incorrect automated sending of bounce messages by mail servers is called backscatter.

See here for more details about spam.
Some advices of how to reduce spam amount in the mailbox.

Questions


How to disable AdBlock program?

How to clear „Cache”, „Cookies” or „Temporary Internet Files”?

Forward to other email, SMS notification

Ways to protect your account

How to turn off incoming mail auto-filtering to the folders "Social" and "Lists"

What is the technical maintenance of the mailbox?

Using the Alias Feature

What is the Mail+

Filter incoming messages

SMS notifications

Cleaning the folder

Warning "This message could've been sent by user ..."

How to block a message sender?

The message about web-page blocking

How to create a new signature in the letter?

How to change the text font and size of a letters?

How to receive Mail+ service?

I can not receive messages

Advanced Search

How to turn off the SPAM filter

Browsers for portal and updating them

Recover emails, deleted from the mailbox

Technical and administrative requirements for incoming messages

Report spam

Themes

Filter rule: move message to folder

I receive error during sending message

Auto Reply

Spell-checking in Your browser

Folder "Lists" and "Social"

Print the letter

Filter rule: ignore SPAM rules

Language settings for the portal

How to sign out from mailbox

View all unread messages in a folder

How to send the message with multiple addresses?

Warning for password transmission.

When I send a message, my personal information isn't correct

Increased spam protection.

Message sorting

Mark letter as

Filter rule: redirect and leave a copy

Threads

How to request confirmation on reception?

Filter rule: delete message

Letters and pictures size on the computer screen

How to tell if this was you

How to restore message from "Trash" folder

Filter rule: redirect to another e-mail

Renaming a folder

Why my sent e-mails go to «Lists» or «Social» folders

How to prevent important email from going into the SPAM folder?

How to clear the "Trash" and the folder "Spam"

Quick Search

How to disable notifications of contact birthdays and name days?

I removed all messages, but my mailbox is still full

I need a larger mailbox