Gmail rejecting mail sent from company domain.
I am having trouble with mail sent using Thunderbird from my company domain to some gmail addresses. These messages are simply being rejected with the 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." Bluehost.com is my email provider. These are individual messages being sent to one person. I have been in touch with Google and they say: "Google Workspace Support, Akshaye: To resolve this issue you need to make your emails authenticated by adding the server / IP address of the third party email client / application to your SPF records." I confirmed with them that they mean the third party email client, which would be Thunderbird. They asked me to contact you and find out what server IP address or address range you are using, so I am doing that. Can you shed any light on this request? I am confused by it.
Semua Balasan (4)
Just to clarify, Thunderbird uses the IP address that you provide. You provide that by providing server names of incoming server and SMTP server. And those IP addresses are owned by bluehost. SPF records are records that are placed on the server by the email host--Bluehost. However, the other possibility is that the SMTP settings you placed in Thunderbird are insufficient. That is, Thunderbird provides the opportunity to specify the required authentication required by the email host. I suggest you review your SMTP settings to see if they are in compliance with whatever is required by Bluehost.
Thanks for your clarifying response David. I have checked and my SMTP settings are what Bluehost requires. I am suspicious that Google is not describing the situation correctly. I think it is more likely that they are suggesting putting the IP address of the SMTP server in the SPF record. I tried to suggest that, but they said no, that is not what they are suggesting. Does this make more sense to you?
My first suggestion is to review your SMTP settings. Posting a screenshot doesn't guaranteed a fix, but it will let other eyes see it. You might also review the issue with Bluehost, but they're pretty good at what they do, so I'd be surprised if there is an SPF record error. Still, I would let them know.
Thanks for the ongoing help. I will pursue it from here. I appreciate your time.