Yeah, Proofpoint's incident dashboard suggests it's still ongoing, but I'm not able to reproduce it from here, or via testing a number of various public resolvers. Maybe it's already resolved and the dashboard needs updating. Example of my lookups: https://www.wombatmail.com/dns.cgi?t=mx&d=salesforce.com&m=yes
Cheers, Al Iverson On Fri, Aug 14, 2026 at 11:27 AM Ferris, Rhys (SAA) via mailop <[email protected]> wrote: > > They sent this out: > > > > This is a Proofpoint Communication Service (PCS) Alert for informational > purposes only. > > Proofpoint is experiencing a production incident. Visit > https://proofpoint.my.site.com/community/s/proofpoint-current-incidents for > more information. > > If you have further questions, please open a ticket in PCSC or call the > support hotline. Do not distribute this communication to any 3rd party. > > > > > > Rhys (R-ee-s) Ferris > Senior Systems Engineer > Identity and Collaboration Operations (ICO) > United States Senate, Sergeant at Arms > [email protected] > ☎️202-228-4758 > 📱202-815-7663 > > > > From: mailop <[email protected]> On Behalf Of Dmytro Homoniuk via > mailop > Sent: Friday, August 14, 2026 11:10 AM > Cc: [email protected] > Subject: Re: [mailop] themofisher.com with pphosted.com MX entries that don’t > resolve (NXDOMAIN) > > > > I'm seeing a lot of DNS resolution issues on pphosted domains in general in > the last two hours. > Also seems like a bunch of cusotmers are complaining they can't access > Proofpoint at all https://statusgator.com/services/proofpoint > > > > On Fri, Aug 14, 2026 at 3:38 PM Atro Tossavainen via mailop > <[email protected]> wrote: > > On Fri, Aug 14, 2026 at 03:12:43PM +0200, Paul Menzel via mailop wrote: > > Dear Mail Operators, > > > > > > If somebody has any contacts to thermofisher.com, please tell them, > > that currently their email setup is broken: > > Appears to have been fixed: > > $ dig +short thermofisher.com MX > 10 ppmxb.thermofisher.com. > 10 ppmxa.thermofisher.com. > > (and they have IPs.) > > > > > $ host thermofisher.com > > thermofisher.com has address 208.89.143.75 > > thermofisher.com mail is handled by 10 mxb-002a2102.gslb.pphosted.com. > > thermofisher.com mail is handled by 10 mxa-002a2102.gslb.pphosted.com. > > $ host mxb-002a2102.gslb.pphosted.com. > > Host mxb-002a2102.gslb.pphosted.com. not found: 3(NXDOMAIN) > > $ host mxa-002a2102.gslb.pphosted.com. > > Host mxa-002a2102.gslb.pphosted.com. not found: 3(NXDOMAIN) > > $ > > > > > > Kind regards, > > > > Paul > > > > > > PS: Verified by Google DNS: > > > > ``` > > $ dig @8.8.8.8 mx mxb-002a2102.gslb.pphosted.com. > > > > ; <<>> DiG 9.20.26-1-Debian <<>> @8.8.8.8 mx mxb-002a2102.gslb.pphosted.com. > > ; (1 server found) > > ;; global options: +cmd > > ;; Got answer: > > ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16784 > > ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 > > > > ;; OPT PSEUDOSECTION: > > ; EDNS: version: 0, flags:; udp: 512 > > ;; QUESTION SECTION: > > ;mxb-002a2102.gslb.pphosted.com. IN MX > > > > ;; AUTHORITY SECTION: > > gslb.pphosted.com. 55 IN SOA ns-sc4.proofpoint.com. > > ops.proofpoint.com. 2026091872 10800 3600 604800 60 > > > > ;; Query time: 20 msec > > ;; SERVER: 8.8.8.8#53(8.8.8.8) (UDP) > > ;; WHEN: Fri Aug 14 15:11:40 CEST 2026 > > ;; MSG SIZE rcvd: 117 > > > > ``` > > _______________________________________________ > > mailop mailing list > > [email protected] > > https://list.mailop.org/listinfo/mailop > > -- > Atro Tossavainen, Chairman of the Board > Infinite Mho Oy, Helsinki, Finland > tel. +358-44-5000 600, http://www.infinitemho.fi/ > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop > > > > ________________________________ > > > > ________________________________ > > This email, its contents and attachments contain information from Ziff Davis, > Inc. and/or its affiliates which may be privileged, confidential or otherwise > protected from disclosure. The information is intended to be for the > addressee(s) only. If you are not an addressee, any disclosure, copy, > distribution or use of the contents of this message is prohibited. If you > have received this email in error, please notify the sender by reply email > and delete the original message and any copies. > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop -- Al Iverson // 312-725-0130 // Chicago http://www.spamresource.com // Deliverability http://www.aliverson.com // All about me https://xnnd.com/calendar // Book my calendar _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
