Regarding the first issue: this is based on the recipient's email client settings in most cases. It is common for the settings to not automatically load images in emails for security purposes. This isn't an issue specific to the HTML email signature.
The second issue: I would suggest adding a smaller version of your logo. I see that the one you have hosted on imgur is fairly large, and in an email signature would never display at that size; uploading one closer to the size that it will actually appear in the signature may reduce that issue, which sounds like a compression issue.
Josh
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Josh Curcio HubSpot support and inbound marketing for OEMs, contract manufacturers, and industrial suppliers. HubSpot Diamond Partner & HubSpot Certified Trainer
Regarding the first issue: this is based on the recipient's email client settings in most cases. It is common for the settings to not automatically load images in emails for security purposes. This isn't an issue specific to the HTML email signature.
The second issue: I would suggest adding a smaller version of your logo. I see that the one you have hosted on imgur is fairly large, and in an email signature would never display at that size; uploading one closer to the size that it will actually appear in the signature may reduce that issue, which sounds like a compression issue.
Josh
Did this post help solve your problem? If so, please mark it as a solution.
Josh Curcio HubSpot support and inbound marketing for OEMs, contract manufacturers, and industrial suppliers. HubSpot Diamond Partner & HubSpot Certified Trainer