Hi.
I try to schedule a campaign, but it fails with server's 500 error (see attached screenshot).
There is an error in the log saying:
PHP Fatal Error: Uncaught ErrorException: Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN (errflg=1) in Unknown:0
We used to have this issue...
Hi.
First of all, this issue is pretty hot, because we already emailed about 50k of our subscribers and got 1.5k bounces/complaints that are not processed yet. Now, we want to send another campaign, but we face a risk that our reputation will drop, as the bounced email addresses will be emailed...
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