dns serverinizden mx kaydının aşağıdaki gibi olduğunu kontrol edermisiniz. msn custom domain mx kaydı standarttır. aşağıdaki kaydı girerseniz sorun çözülecek sanırım
Alıntı
# MX server: 58202532.pamx1.hotmail.com
# TTL: 3600 or 1 hour
# Priority: 0 (or High priority)
Edit: sanırın mx adresinde ki 58202532 kısmı domaine göre değişiyor, kendi domaininize ait mx kaydını
https://domains.live.com/ adresinden giriş yaparak görebilirsiniz.
Alıntı
To set up an MX record:
1. Sign in to Windows Live Admin Center with your Windows Live ID (The user name and password that you use to sign in to any Windows Live, MSN, or Office Live sites and services. If you have a Passport Network, Hotmail, or Messenger account, you can use it as your Windows Live ID.) .
2. Under Your domains, click the appropriate domain.
3. In the left pane, click Domain Settings.
4. Under Administrator status, make a note of the MX record information and the DNS settings.
5. Visit your domain registrar's website, and then sign in to your account.
6. Find the management or DNS settings area where you can edit the records for your domain. If you have more than one domain, select the domain that you used to sign up for Windows Live Admin Center.
7. Delete or clear any existing MX records.
8. Type the MX record and DNS information, and then save your settings.