Nov 18, 2017 · If there was a way to specify TLS then 587 would work. It was working, just stopped. Mail just has an SSL option and not TLS. This is for my work smtp server which requires port 587

Many email clients and services use port 25 for SMTP to send out emails. However an ISP (Internet Service Provider) may block port 25 in order to prevent spamming by its customers. This article will show you how you can check to see if Port 25 is blocked on your network. Support » Plugin: WP Mail SMTP by WPForms » O365 and Gmail SMTP Not Working. O365 and Gmail SMTP Not Working. rburns smtp.office365.com Port: 587 Username: Your Alerts SMTP setttings send from in office 365. Port: 587. of alert notification and I had cases of it not working or server hosting no working and then you 3. Outgoing Port is set to "587" Click "Done" It will VERIFY these settings. If it does NOT verify, then something is wrong. It could be that your password is typed in wrong in this particular area, or did not get saved to this part of the email set up.

For the SMTP host, you need to set up smtp.gmail.com, and for the SMTP Port, use the port 465. Next, to encryption, you may want to select the appropriate Encryption. You want to keep the Authentication ON by default.

For the SMTP host, you need to set up smtp.gmail.com, and for the SMTP Port, use the port 465. Next, to encryption, you may want to select the appropriate Encryption. You want to keep the Authentication ON by default. We recommend you use authenticated SMTP relay services (that typically connect through TCP port 587 or 443 but support other ports, too) to send email from Azure VMs or from Azure App Services. These services are used to maintain IP or domain reputation to minimize the possibility that third-party email providers will reject the message. We have a rule to allow outbound to 'smtp.office365.com' on port 587. It is not working, when the dstaddr is 'smtp.office365.com'. Viewing the policy showed this resolves to (4) different Microsoft addresses. If I update the dstaddr to 'all' it works.

Thanks, yes, we have a static IP here at work. So, that's why our regular company email works fine on SMTP port 25 and does not at home on my residential FiOS. I will check with my admin to see if we can use a different port for company emails. If not, I will look into using my gmail outbound servers to send mail. Thanks everyone.

We have a rule to allow outbound to 'smtp.office365.com' on port 587. It is not working, when the dstaddr is 'smtp.office365.com'. Viewing the policy showed this resolves to (4) different Microsoft addresses. If I update the dstaddr to 'all' it works. Nov 18, 2016 · However, when I create a smtp on a non-gmail address it is not working. If you look at my account you'll see that the email account I set up with SMTP box1277.bluehost.com port 465 doesn't work. When I set this smtp up, it defaulted to port 587 and I ultimately needed to change it to the correct port 465.