Month: August 2022

550-5.7.1 Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication

I think I finally got this issue fixed. Warning: 550-5.7.1 Our system has detected that this message does not meet IPv6 sending guidelines regarding PTR records and authentication. Please review 550-5.7.1 I first mentioned the problem with the IPv6 warning in this thread.  And then I mentioned it again here.  And I had thought it …

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Cyberpanel with Cloudflare – outgoing emails being rejected by gmail addresses

I’ve made a few posts already about issues with emails being rejected by gmail addresses with a variety of messages.  Ultimately, the solution that seems to have finally resolved my problems includes the following steps: send a message from your email address to mail-tester.com and fix any issues that show up, this may involve setting …

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Cyberpanel email log – IP address does not have a PTR record setup 550-5.7.25

TLDR:  gmail has very strict anti-spam and forwarding emails makes it even tougher to pass their spam filters.  The best you can do is run your emails through a test site like mail-tester.com and lookup how to solve each of the issues presented.  I found forwarding emails to outlook instead of gmail worked fine.  If …

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