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lee@safeswim.com
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February 4, 2019 at 9:54 pm
Hi. Messages to registrants with gmail email addresses are bouncing back as “Mail delivery failed: returning message to sender”. This started today but I didn’t make any changes the EE.
Can you please let me know what might be causing this problem?
Thank you.
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Tony
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February 5, 2019 at 4:36 am
Hi there,
Is it only for Gmail users?
Usually, if emails randomly stop sending, especially for a specific domain, it means the mail server you are using has been flagged for spam and now they are rejecting that server.
Ar you using your host’s mail server or another service?
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