Help Email periodically cant connect to driod outgoing server

[cisco711]

i have my email settings to retrieve every 5 minutes, sometimes when I reply to a email I get the unable to send mail then I check the account settings and it says unable to communicate with the driod outoutgoing server, I restart my phone then it will work but this is not a solution long term. Sprint has restarted my phone too. any suggestions???

 

[sitlet]

First, the Evo is not a Droid, or a "driod" as you call it.

Second, what kind of email account is it? gmail? Exchange? Do you have a good 3g connection? wifi? when it does this, does your browser work?