What should this be set to for the boards to work properly? Originally I left it blank, but I was getting a lot of SMTP errors. Then I saw a post that mentioned mail.m****here.biz, so I used that, which seemed to be working great until this morning. Now I get this error message whenever an SMTP action is performed:
Ran into problems sending Mail. Response: 553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1)
Ran into problems sending Mail. Response: 553 sorry, that domain isn't allowed to be relayed thru this MTA (#5.7.1)