Horde :"Failed to set sender [email protected] SMTP Failed to write to socket"

[MouadZ]

Hi,

All our hosted clients this error, when they try to send mails using horde interface.

"Failed to set sender [email protected] SMTP Failed to write to socket"

Please help me resolving that problem, i've also tried the solution listed below but it didn't work.

Plesk

thank you

 

[IgorG]

Most probably the problem is with firewall. Try stopping firewall and see if that works.