There are many reasons why an email is not delivered to the recipient.
- Auto-responses and Vacation Replies
- Email delivered to “Junk” or “Spam” folder of recipient
- General undeliverable emails with no error specified by recipient’s server
- Recipient email server is down or unreachable
- “Connection timed out”
- Recipient mail box full
- Recipient email address not found
- Temporary non-delivery (server will keep trying for a few more days)
- Your server IP is blocked by recipient’s ISP (“Relaying Denied”)
- Your server IP is blacklisted for suspected spam
And the list goes on!
That should give you an idea why email delivery is so tricky and complicated, which is what created a niche for the email delivery industry, and which is why companies like Aweber, MailChimp and GetResponse even came into existence and have thrived while charging a hefty fee for what you would think is the simple act of delivering email over the interwebs.
When you use DAP for sending out emails (whether autoresponder or broadcast emails), the “From Name” and “From Email” you set up in the DAP Config are used to send out the emails.
If you use your own web host as the “carrier”, then your web host’s email server is the one that carries the email and tries to deliver to the inbox of the recipient. And web hosts are generally not very good at the intricate science of email delivery, which is why if you’re going to use DAP, we recommend that you bypass your web host and have a third-party email system like Amazon SES deliver your emails.
Regardless of the carrier (web host, Amazon SES, AuthSMTP.com, etc), all bounced and undeliverable emails come back to the “From Email” that you have used under DAP Config.
DAP by itself does not do anything with those emails, as those emails don’t come back to DAP, but they go straight to the inbox of whatever “From Email” you have specified.
We will surely address this in the future. But for now, you will have to manually review those email bounces, see which one of them sound more serious (like, say, recipient email id not found, or domain no longer in use, etc), and then de-activate those email id’s from your DAP database.
When you use Amazon SES, Amazon by itself also monitors email id’s that have a consistent history of bouncing back, and will automatically suppress those email id’s and won’t even deliver email to those email id’s even if DAP did send the actual email to those id’s.