HELO issues lead to IP Blacklisting #69

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gauravmuk opened this issue Apr 5, 2023 · 0 comments · May be fixed by #70

gauravmuk commented Apr 5, 2023

The library when used long term leads to a blacklist by https://check.spamhaus.org specifically for Outlook emails.

Replication Steps:

Enter any outlook business email
Library tries to connect with MX Exchange of outlook
HELO is sent as same as MX Exchange of outlook
Every time an email is validated a different HELO originates from the same IP which is a spam practice

The library should not encourage this behaviour and instead ask to define a HELO with best practices.

gauravmuk linked a pull request

that will close this issue

Fix Helo problems with Spamhaus #70

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