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Received undelivery notificaon 3 days after the email was sent

8912037 shared this problem 2 years ago


To my surprise 3 days after an email was sent I received an undelivered message notification presented as follows:


This is the mail system at host mx1.mailbox.org.

I'm sorry to have to inform you that your message could not

be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can

delete your own text from the attached returned message.

The mail system

<xxxxx@xxxxx.com>: : TLS is required, but was not offered by host



Why the tremendous delay? Why one has to wait 3 days later to receive an unsuccessful mail delivery notification?

This is not acceptable for anyone using email services, regardless of the priority.

Can someone explain this occurrence?

Comments (1)


Can someone pls take a look at this? 3 days for a successful delivery message is a no deal to anyone.