Round cube webmail

[cabn12]

Good afternoon friends, I have a client who complains when trying to reply to an email with attachments, as he receives the message from server connection failed and sometimes when replying to this email received for more than one address he receives the message from bouce email and when withdrawing for example one reply address the email goes but this one complains that the attachments are all misconfigured.

 

[gate2vn]

Check roundcube log in /var/www/html/roundcube, it should give you some ideas why the connection failed.

 

[cabn12]

none no logs ! new message new buffer

 

[zEitEr]

an email with attachments, as he receives the message from server connection failed

This might mean a reply is rejected by your Exim. Check rejectlog and exim logs under /var/log/exim/

the email goes but this one complains that the attachments are all misconfigured.

What do you mean here? Do you mean that they see attachments with .dat or .bin extension? If it's a bounce message such attachments might contain an original email or errors from a mail server.