 Send mails amazingly |
| Get feedback instantly |
| Work with most mails clients |
| Offer multi-thread technology |
| Support SMTP Authentication |
| Mail queue management |
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You can contact us by send an email to  or go to our online support center, We will reply to you as soon as possible. |
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Delivery to recipients via relay server |
 In general, "delivery via relay smtp server" mode is always used by the senders who can not
directly submit mails to the recipients' server. The "successful delivery" hint given by relay smtp
server just tells if the mails have been successfully delivered to your ISP, but can't know wheather the
mails have been successfully delivered to your recipients' mailbox. QK offers more detailed log that
notes which steps of sending failed. QK also can send multi-mails at the same time. |
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