[SOLVED] Cannot send mails using local sendmail

Aparrently I am not good in googling. Thanks. That article also explains what I am doing with that 6750 permissions.

It seems that 6750 permissions are more secure, cause of those SUID and SGID. 6755 are for those who believes that axigen budled sendmail cannot be used for some evil purposes (I hope it is secured, but better be careful).