MailAddress to right Fax server is not working right

Question

I am trying to send email address and right fax service email gateway recive it just like that It gives the error here

Tried to remove System.Text.Encoding.ASCII

But still same issue below that is received from right fax

TO :- =?us-ascii?Q??/name=3D1000025996-64703714-0/fax=3D0227707689/?
<[email protected]>?=" <[email protected]>

The code & Problem in MailAddress to

MailAddress from = new MailAddress("<[email protected]>");

MailAddress to = new MailAddress("<[email protected]>", "“/name=" + clientID + "/fax=" + faxNumber + "/” <[email protected]>", System.Text.Encoding.ASCII);

Answer 1

just dont use special characters including <>?/ and etc.