使用WAMP和Windows从Windows切换后 发邮件 ，使用MAMP Pro到Mac并希望Postfix我遇到了正确配置电子邮件的问题。我已完全配置Postfix智能主机以使用实时电子邮件帐户发送电子邮件。
当我检查mail.log时
Jul 22 11:29:28 John-MacBook postfix/smtp[544]: C5B2926C91C: to=<info@mysite.co.uk>, relay=mail.mysite.com[212.110.123.123]:25, delay=603, delays=602/0.07/0.13/0.03, dsn=5.7.1, status=bounced (host mail.mysite.com[212.110.123.123] said: 553 5.7.1 <john@mysite.co.uk>: Sender address rejected: not owned by user mail@mysite.co.uk (in reply to RCPT TO command))
Jul 22 11:29:28 John-MacBook postfix/cleanup[550]: 4607426CA90: message-id=<20120722102928.4607426CA90@mailer.mysite.co.uk>
Jul 22 11:29:28 John-MacBook postfix/qmgr[502]: 4607426CA90: from=<>, size=2447, nrcpt=1 (queue active)
Jul 22 11:29:28 John-MacBook postfix/bounce[548]: C5B2926C91C: sender non-delivery notification: 4607426CA90
Jul 22 11:29:28 John-MacBook postfix/qmgr[502]: C5B2926C91C: removed
Jul 22 11:29:28 John-MacBook postfix/smtp[543]: 4607426CA90: to=<john@mysite.co.uk>, relay=mail.mysite.com[212.110.123.123]:25, delay=0.19, delays=0.01/0/0.08/0.09, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 5E2E8D807E)
Jul 22 11:29:28 John-MacBook postfix/qmgr[502]: 4607426CA90: removed
status = bounced：发件人地址被拒绝：不属于用户 mail@mysite.co.uk（回复RCPT TO命令））
我注意到“john@mysite.co.uk”不存在，实际上“john”是我的Mac用户名。如何强制Postfix始终使用mail@mysite.com发送电子邮件？这是用于发送我输入MAMP PRO控制面板的电子邮件的电子邮件地址。