Email from our website stopped by Mimecast
Dear Experts,
We are using Wordpress on Bluehost for our website, and using WP Mail SMTP plug-in to send out acknowledgement emails after we receive a request. We are having issues because our client, who is receiving this request mails use Mimecast, and they see this as spoofing, because All email for Bluehost's shared hosting customers is routed through a pool of proxy email servers. We cannot white list a range of IPs because they seem to change all the time.
We tried other plug-ins, but the issue always remains the same.
Please advise.
We are using Wordpress on Bluehost for our website, and using WP Mail SMTP plug-in to send out acknowledgement emails after we receive a request. We are having issues because our client, who is receiving this request mails use Mimecast, and they see this as spoofing, because All email for Bluehost's shared hosting customers is routed through a pool of proxy email servers. We cannot white list a range of IPs because they seem to change all the time.
We tried other plug-ins, but the issue always remains the same.
Please advise.
If you are sending email from these IPs you should have these IPs in sender source in your SPF records (of domain).
Some providers will have a name for the IP pool in that case you add that name.
Some providers will have a name for the IP pool in that case you add that name.
ASKER
Dear Experts, thank you for your quick replies.
I am not sure if I am getting to the details of my issue correctly, so please let me write everything we have done so far.
irst I tried using the plugin WP Mail SMTP to connect directly with Mimecast and send emails outbound using their SMTP server,
[us-smtp-outbound-1.mimeca
This does not work. The settings I entered work perfectly when entered into the SMTP testing tool SMTPER [https://www.smtper.net]. When I try them on Wordpress, however, they don't work. I think I know why: we are using shared hosting on Bluehost. Bluehost blocks port 587, which is the port needed to connect with Mimecast’s SMTP servers.
The second method we tried was to create an email account on Bluehost.com and send it through that email account, again using WP Mail SMTP. The advantage of this is that Bluehost uses port 465 for emails, and it’s one of the only ports they keep open. Wordpress successfully sends the emails. Unfortunately, this has failed to solve the problem because the emails are sent through a series of proxy IPs such as unifiedlayer.com before reaching the client, and since the client gets them from a different IP each time, they don’t have an IP they can whitelist. They won’t whitelist the email address, of course, because that’s not secure enough.
Currently, the next thing I’m planning on trying is using an email service like SendGrid to send the emails. SendGrid talks to wordless with an API key over the web instead of using an ordinary email port, so ports wouldn’t be a problem. But I have the feeling there may be resistance to this idea if I propose it. If you know any other way around my predicament, I’d appreciate it!
I am not sure if I am getting to the details of my issue correctly, so please let me write everything we have done so far.
irst I tried using the plugin WP Mail SMTP to connect directly with Mimecast and send emails outbound using their SMTP server,
[us-smtp-outbound-1.mimeca
This does not work. The settings I entered work perfectly when entered into the SMTP testing tool SMTPER [https://www.smtper.net]. When I try them on Wordpress, however, they don't work. I think I know why: we are using shared hosting on Bluehost. Bluehost blocks port 587, which is the port needed to connect with Mimecast’s SMTP servers.
The second method we tried was to create an email account on Bluehost.com and send it through that email account, again using WP Mail SMTP. The advantage of this is that Bluehost uses port 465 for emails, and it’s one of the only ports they keep open. Wordpress successfully sends the emails. Unfortunately, this has failed to solve the problem because the emails are sent through a series of proxy IPs such as unifiedlayer.com before reaching the client, and since the client gets them from a different IP each time, they don’t have an IP they can whitelist. They won’t whitelist the email address, of course, because that’s not secure enough.
Currently, the next thing I’m planning on trying is using an email service like SendGrid to send the emails. SendGrid talks to wordless with an API key over the web instead of using an ordinary email port, so ports wouldn’t be a problem. But I have the feeling there may be resistance to this idea if I propose it. If you know any other way around my predicament, I’d appreciate it!
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
If you're using the Mimecast relay service, then all your mail will flow through Mimecast, never Bluehost.
Double check your config because something's broken.
Refer to Mimecast settings for your account to plug into WP Mail SMTP.