Im using mailenable.
When i sent emails for hotmail i got this error
Mail server for [login to view URL] is not contactable. Message has expired and has been returned to Sender.
For Gmail i get this message. I get This message.
Our system has detected that this message is**550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail,**550-5.7.1 this message has been blocked. Please visit**550-5.7.1 [login to view URL]**550 5.7.1 for more information. a10si9395798pfn.256 - gsmtp**)
With mxtool i already checked my domain and seems to be everything ok.
my domain is [login to view URL]
in annex u have my dns records.
i would like to fix this situation and check everything that i send and be sure that i dont sent spam.
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i can try to resolve your issue. as its seems something like you have configured spam filters. and if you are getting error via sending emails it means your mail sever is not configured properly.