我已经用卫星配置配置了 postfix。我在系统日志中发现了以下警告。知道这意味着什么吗？我该如何解决这个问题？
Jul 16 13:39:24 mou-lanister postmulti[2042]: warning: /etc/postfix/main.cf, line 43: overriding earlier entry: relayhost=smtp.gmail.com
Jul 16 13:39:24 mou-lanister postmulti[2046]: warning: /etc/postfix/main.cf, line 43: overriding earlier entry: relayhost=smtp.gmail.com
Jul 16 13:39:24 mou-lanister postmulti[2053]: warning: /etc/postfix/main.cf, line 43: overriding earlier entry: relayhost=smtp.gmail.com
Jul 16 13:39:24 mou-lanister postmulti[2057]: warning: /etc/postfix/main.cf, line 43: overriding earlier entry: relayhost=smtp.gmail.com
Jul 16 13:39:24 mou-lanister postmulti[2061]: warning: /etc/postfix/main.cf, line 43: overriding earlier entry: relayhost=smtp.gmail.com
Jul 16 13:39:24 mou-lanister postmulti[2063]: warning: /etc/postfix/main.cf, line 43: overriding earlier entry: relayhost=smtp.gmail.com …postfix ×1