[OPLINTECH] Courtesy Email Delivery Issues

[Whetsel, Shawn]

Matt,
                I just fixed this after years of complaints about bounced messages from certain patrons, and only some of the time. We were getting over 1000 "554" error every morning from TWC, AOL, Windstream, and the like because our reverse DNS lookup or PTR did not exist. Only some providers require the PTR for SPAM prevention, so it's not everyone that would have the problem. So if you are look at one of the bounced emails and see a 554 error, you just need to contact OPLIN and have them add a reverse DNS record pointing to the IP address of your originating notice server. Give it a few days for the providers to update their DNS.
Shawn Whetsel
Network Services Coordinator
[cid:image001.jpg at 01CF6492.FFBD69C0]<www.akronlibrary.org>
Phone: 330-643-9161
E-mail: swhetsel at akronlibrary.org<mailto:swhetsel at akronlibrary.org>
Information Technology
60 S. High St.
Akron, OH 44326
[A+][Network+][Security_logo.1]

From: oplintech-bounces at lists.oplin.org [mailto:oplintech-bounces at lists.oplin.org] On Behalf Of Matthew White
Sent: Friday, May 15, 2015 2:03 PM
To: oplintech at lists.oplin.org
Subject: [OPLINTECH] Courtesy Email Delivery Issues

Hello,
I'm wondering if anyone else has experienced delivery problems with their courtesy emails. And, if so, what you're experiencing and how you're troubleshooting the problem.
Initially, we noticed a pattern of patrons who used AOL accounts not receiving their emails. I thought this was related to SPAM filtering on AOL's end. However, we have also been informed by three more patrons that they did not receive emails telling them of items coming due. (They had emails addresses at emypeople.net, sbcglobal.net and att.net).
Thus far, we have not had a single complaint from someone with a Gmail or Yahoo email address. We have been able to verify that people with these accounts are receiving emails.
We recently upgrade to Microsoft 365's cloud based email. I'm starting to suspect that it could be related to this.
We are running Library Solutions preferences 4.2.9.5.
Thank you,

-         Matt

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