I'm developing application for google app engine (python), witch needs not only to send emails, but also know which ones bounce back.
I created special account for my domain [email protected], added it as an app admin and sending messages from it.
The problem is (and it was described here http://code.google.com/p/googleappengine/issues/detail?id=1800) - GAE sets the Return-Path to some internal email address, not allowing to receive bounced email messages.
Anyone aware of any possible workaround for this? Thanks.
A reputation bounce happens in Gmail whenever the system treats a message as suspicious for reputation-related reasons—for example, because the sending domain has low reputation, the message is linking to someone with low reputation, or it's matching recent spam trends detected by Gmail filters.
To send email messages, use the JavaMail classes included with the App Engine SDK. When you create a JavaMail Session, if you do not provide any SMTP server configuration, App Engine uses the Mail service for sending messages.
To create a Custom Envelop you need to go to Domain Management -> Settings and create custom envelop to get bounce notifications. With this, the bounce forwarding within your account is enabled. Now each time, when a bounce will appear, the system will automatically notify you.
It looks like someone bypassed this problem by switching to Yahoo's Mail API, which uses OAuth and can be used over HTTP. Until google fixes your problem, this looks like a viable solution.
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