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Formatting and minor grammar improvements, I was careful not to change the intent or tone of the original message

edited Mar 30, 2017 at 10:44

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I am getting some mails from [email protected] recently which contains the following body

polimer.****@list.ru (Generated from tm@polimer**.com) SMTP error from remote mail server after end of data: host mxs.mail.ru [217.69.139.150]: 550 spam message rejected. Please visit http://help.mail.ru/notspam-support/id?c=492kXe0dKYSNlz4sMg9yCER_-TdG5vEtBgAAAM5DAQAxgVkl or report details to [email protected]. Error code: 5DA4DDE384291DED2C3E978D08720F3237F97F442DF1E646. ID: 00000006000143CE25598131.

polimer.****@list.ru (Generated from tm@polimer**.com) SMTP error from remote mail server after end of data: host mxs.mail.ru [217.69.139.150]: 550 spam message rejected. Please visit http://help.mail.ru/notspam-support/id?c=492kXe0dKYSNlz4sMg9yCER_-TdG5vEtBgAAAM5DAQAxgVkl or report details to [email protected]. Error code: 5DA4DDE384291DED2C3E978D08720F3237F97F442DF1E646. ID: 00000006000143CE25598131.

In reality I never sent the mail to polimer.****@list.ru and by the looklooks of the failure mail received it, the mail was sent formfrom plastok@my_domain.com andbut I don't have any log in my mail server(checked the outbox) thatabout the mailemail being sent to the above referred address.

I have catch all mail enabled in my mail server. My original mails are being sent through Gmail and can also be sent from my domain sever with webmail.

Is it the spoofing? How to identify the sender? If not possible how to stop those mail from sending using my domain name? Please help me to get out this situation.

I am getting some mails from [email protected] recently which contains the following body

In reality I never sent the mail to polimer.****@list.ru and by the look of the failure mail received , the mail sent form plastok@my_domain.com and I don't have any log in my mail server(checked the outbox) that the mail sent to the above referred address.

I have catch all mail enabled in my mail server. My original mails are being sent through Gmail and can also be sent from my domain sever with webmail.

Is it the spoofing? How to identify the sender? If not possible how to stop those mail from sending using my domain name? Please help me to get out this situation.

I am getting some mails from [email protected] recently which contains the following body

polimer.****@list.ru (Generated from tm@polimer**.com) SMTP error from remote mail server after end of data: host mxs.mail.ru [217.69.139.150]: 550 spam message rejected. Please visit http://help.mail.ru/notspam-support/id?c=492kXe0dKYSNlz4sMg9yCER_-TdG5vEtBgAAAM5DAQAxgVkl or report details to [email protected]. Error code: 5DA4DDE384291DED2C3E978D08720F3237F97F442DF1E646. ID: 00000006000143CE25598131.

In reality I never sent the mail to polimer.****@list.ru and by the looks of it, the mail was sent from plastok@my_domain.com but I don't have any log in my mail server(checked the outbox) about the email being sent to the above referred address.

I have catch all mail enabled in my mail server. My original mails are being sent through Gmail and can also be sent from my domain sever with webmail.

Is it the spoofing? How to identify the sender? If not possible how to stop those mail from sending using my domain name? Please help me to get out this situation.

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asked Mar 30, 2017 at 10:29

IT researcher

Receiving unknown bounced mails

I am getting some mails from [email protected] recently which contains the following body

I have catch all mail enabled in my mail server. My original mails are being sent through Gmail and can also be sent from my domain sever with webmail.

Is it the spoofing? How to identify the sender? If not possible how to stop those mail from sending using my domain name? Please help me to get out this situation.

email-spoofing