Outgoing SMTP IP by Postoffice

jglazer
Posts: 229
Joined: Thu Mar 17, 2005 5:48 pm

Outgoing SMTP IP by Postoffice

Postby jglazer » Tue Apr 10, 2018 11:20 am

I have an installation with a lot of post offices. Inevitably, someone in one post office gets hacked into and that account used for spam which, in turn, causes the IP to be black listed until I can resolve it. Is there any way to specify an SMTP IP for outgoing mail on a post office basis so not everyone is hurt by this?

Thanks
Last edited by jglazer on Wed Apr 11, 2018 9:24 pm, edited 1 time in total.

jglazer
Posts: 229
Joined: Thu Mar 17, 2005 5:48 pm

Re: Outgoing SMTP Port by Postoffice

Postby jglazer » Wed Apr 11, 2018 1:02 pm

Bump

cfdynamics
Posts: 99
Joined: Mon May 24, 2010 2:27 pm

Re: Outgoing SMTP Port by Postoffice

Postby cfdynamics » Wed Apr 11, 2018 8:47 pm

Blacklists look at the IP the traffic is coming from. Changing an outgoing port would not help you. About the only thing you would be able to do is add another IP to the machine if you have one and change the IP binding in the SMTP service properties.

jglazer
Posts: 229
Joined: Thu Mar 17, 2005 5:48 pm

Re: Outgoing SMTP IP by Postoffice

Postby jglazer » Wed Apr 11, 2018 9:25 pm

I want to assign an outgoing IP by postoffice so that not every postoffice is effected when an IP is blacklisted or has a poor rep. That seems like it would be simple to do.

Brett Rowbotham
Posts: 510
Joined: Mon Nov 03, 2003 7:48 am
Location: Cape Town

Re: Outgoing SMTP IP by Postoffice

Postby Brett Rowbotham » Thu Apr 12, 2018 4:48 am

Under the Servers branch in MailEnable Management right-click the localhost (what it says on my server) and select Properties. On the General page you can enable postoffice bindings and assign IPs per post office.

Cheers,
Brett

jglazer
Posts: 229
Joined: Thu Mar 17, 2005 5:48 pm

Re: Outgoing SMTP IP by Postoffice

Postby jglazer » Fri Apr 13, 2018 11:45 am

That sounds perfect. So I will be able to assign a few post offices to outgoing IP A and a few others to outgoing IP B?? That way is somehow A is added to a block list than it won't effect B? I am assuming I can assign multiple post offices to a single IP. Would be rather silly to limit this to just a 1-1 relationship.

jglazer
Posts: 229
Joined: Thu Mar 17, 2005 5:48 pm

Re: Outgoing SMTP IP by Postoffice

Postby jglazer » Mon Apr 16, 2018 11:14 am

Bump

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