We are sending email to users. When the user is getting email from Gmail, the HREF is coming properly . But the user is using Zohoemail, the HREF is missing . 

Please find the screenshot . The same email sent to a gmail user is able to see the HREF and click on the link. 

But if the user is a zoho user, the HREF is not coming there . It is the same code . 

For that matter , the same email, if the To is a gmail user and Bcc is Zohouser , the gmail users sees the HREF, while the Zoho user does not see the HREF. 

Can you please look into this - Very urgent ?

Regards, Paul