change sender in Mailing of Global parameters

I tried this new email account; Works perfectly because of the same mail server system.
The problem occurred when I changed the admin's email from my personal email to another email (in this case projeqtor@);
Projeqtor saves all but logout and login or login from another computer, it's the same
Showing old 4 information:
email of administrator (old nam.nh@; new projeqtor@),
'from' email when sending mails (old nam.nh@; new projeqtor@),
'reply to' email when sending mails (old nam.nh@; new projeqtor@),
smtp port. (25 old; new 587)
and use it when sending test emails;