> From: nb <nb@???>
> there are two "550" strings included in the message.
> How do you explain this ?
Exim in the receiving server divided long message to lines:
550-A .zip attachment contains a Windows-executable file - blocked because we
550 are afraid of new viruses not recognized [yet] by antiviruses.
In this case two lines, with "550" at the beginning of each line.
The "-" after "550" in each line except the last one is a continuation sign.
Exim in the sending server concatenated the two lines in the message:
> <nb@???>: host colibri.dagami.org[51.255.40.59] said: 550-A .zip
> attachment contains a Windows-executable file - blocked because we 550 are
> afraid of new viruses not recognized [yet] by antiviruses. (in reply to end
> of DATA command)