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.


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"

Using the Alias Feature

What is the technical maintenance of the mailbox?

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?

How to create a new signature in the letter?

The message about web-page blocking

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

How to receive Mail+ service?

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I receive error during sending message

Report spam


Filter rule: move message to folder

Spell-checking in Your browser

Folder "Lists" and "Social"

Auto Reply

Print the letter

How to sign out from mailbox

Language settings for the portal

How to send the message with multiple addresses?

Filter rule: ignore SPAM rules

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

Warning for password transmission.

Message sorting

Filter rule: redirect and leave a copy

Increased spam protection.

Mark letter as


Filter rule: delete message

How to tell if this was you

How to request confirmation on reception?

Letters and pictures size on the computer screen

Filter rule: redirect to another e-mail

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

How to restore message from "Trash" folder

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

Renaming a folder

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

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I removed all messages, but my mailbox is still full

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