Hello,
Are you currently experiencing server issues? Our outgoing mail is severely delayed but I didn't see any recent postings on the Zoho service-updates blog.
Sending an email from Zoho to my gmail account it took exactly one hour to arrive, 9:26am to 10:26am. Emails sent internally from one Zoho account to another in the same domain have still yet to arrive nearly two hours later.
Thank you,
Elijah