when sending sales email to customer,
while sending email@example.com it will be send but sending mail to gmail or ymail account did not send it.
can you find this issues and help me
Please check your SMTP configuration once again because if you set a usual SMTP server on Magento which is associated to Gmail or Hotmail – you could always run into deliverability troubles. Only expert SMTP service will assure a full delivery rate. OR use can use free SMTP Configuration Extension such as https://www.magentocommerce.com/magento-connect/smtp-configuration.html
I hope it will help..