Sometimes the email agent that is used by Beacon (SendGrid) is not able to deliver an email. There are five ways that this may be shown:
|Bounced as undeliverable|
|SpamReport:||Reported by the recipient or their mail software as spam|
Not been able to be delivered by our mail agent
|Dropped:||Dropped by our mail agent|
Silently dropped by the recipient's mail server as likely to be spam
The first four are reported back to Beacon and shown in red on the email delivery reports page (see 6.1.3).
The fifth is undetectable and will be reported as delivered. Only the first two cause the Beacon mail agent to "blacklist" the recipient email address, and whilst blacklisted, further emails to that address will be dropped by SendGrid.
In all four detectable undeliverable cases, Beacon will send an email message back to the sender and to the Site Administrator, explaining the type of error, and including the reporting system error code. The email will typically say:
The message to [member name] [email address] from U3A Beacon [site name] on date "yyyy-mm-dd" at time "hh:mm:ss" with subject "xxxxx" has been dropped by our mail agent.
The error report is:
'Spam Reporting Address'
A dropped error often indicates that the address is blacklisted due to a bounce or spam report rejection of an earlier email to this address. Your Beacon Site Administrator will have been notified of such rejections and is responsible for dealing with them.