SSH port forward problem
i have a mail server in data center, for localhost user receive/send email, there is no problem. however, the user at remote site (other country) tried to received/send mail always failure, they found their network do not have any connection problem, it seems their ISP block received and send mail on my mail server in datacenter.
They have a linux box installed red hat 9 on remote site and ssh to my mail server, i want to set up a ssh port forward in the linux box, then all the client connect to linux box for receiving/sending email.
i make a passwordless login account on mail server, then run following command on linux box, but the client still can not received email.
ssh -L 1110:202.8x.23x.23x:110 email@example.com
ssh -L 1025:202.8x.23x.23x:25 firstname.lastname@example.org
Is there any problem on my setting? Thanks.