Anyone seeing any issues with yahoo email services? I keep getting dropped; telnet mta6.am0.yahoodns.net 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com ESMTP ready EHLO mail.yahoo.com 250-mtaproxy501.free.mail.bf1.yahoo.com 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host. Sending from outlook and I'm getting this as well; *Diagnostic information for administrators:* Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com Total retry attempts: 7 sample1@yahoo.com <babyereed2013@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred' sample2@yahoo.com <jbliqemp@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred' Original message headers: _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
could be tied to MS health EX719348. been having issues sending to Yahoo since the end of last week. On Monday, March 11th, 2024 at 10:21 AM, bannereddivpool via Outages <outages@outages.org> wrote:
Anyone seeing any issues with yahoo email services? I keep getting dropped;
telnet mta6.am0.yahoodns.net 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com ESMTP ready EHLO mail.yahoo.com 250-mtaproxy501.free.mail.bf1.yahoo.com 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host.
Sending from outlook and I'm getting this as well;
Diagnostic information for administrators:
Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com Total retry attempts: 7
[sample1@yahoo.com](mailto:babyereed2013@yahoo.com) Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
[sample2@yahoo.com](mailto:jbliqemp@yahoo.com) Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
Original message headers:
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
Massive problems with email delivery to Yahoo and AOL today, they share a mail system on the back-end. Microsoft issued advisory EX719348 last Thursday for their IPs being included in some DNSRBLs, and I still see some of their IPs on the Spamhaus RBL (40.107.102.127) but I'm not sure if that's the root cause. All my emails from O365 to Yahoo and AOL have been failing since 3/7. Lots of noise and confusion because Yahoo and AOL recently started enforcing stricter SPF/DKIM/DMARC requirements, but this seems to be unrelated. These emails are DKIM signed, pass SPF, and have a valid DMARC record. Still investigating, will update the list with the eventual resolution. - Cary On Mon, Mar 11, 2024 at 1:27 PM bannereddivpool via Outages < outages@outages.org> wrote:
Anyone seeing any issues with yahoo email services? I keep getting dropped;
telnet mta6.am0.yahoodns.net 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com ESMTP ready EHLO mail.yahoo.com 250-mtaproxy501.free.mail.bf1.yahoo.com 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host.
Sending from outlook and I'm getting this as well;
*Diagnostic information for administrators:*
Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com Total retry attempts: 7
sample1@yahoo.com <babyereed2013@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
sample2@yahoo.com <jbliqemp@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
Original message headers: _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
Okay, just resolved this from my end. My O365 emails were being DKIM signed but by our .onmicrosoft.com subdomain instead of the actual sending domain. Headers would show dkim=pass but the DKIM domain didn't match the FROM address in our envelopes. Had to enable DKIM signing on the custom domain in O365 here https://security.microsoft.com/authentication?viewid=DKIM and setup CNAMEs for the proper selectors in DNS. DMARC reports from Yahoo helped me a ton here, but they were confusing. They showed DKIM failed in the policy_evaulated -> disposition section but showed result = pass in the auth_results -> dkim section. Just had my first successful email to Yahoo.com in days. Looks like the O365 DNSRBL inclusion was a red herring. - Cary On Mon, Mar 11, 2024 at 1:34 PM Cary Wiedemann <carywiedemann@gmail.com> wrote:
Massive problems with email delivery to Yahoo and AOL today, they share a mail system on the back-end. Microsoft issued advisory EX719348 last Thursday for their IPs being included in some DNSRBLs, and I still see some of their IPs on the Spamhaus RBL (40.107.102.127) but I'm not sure if that's the root cause.
All my emails from O365 to Yahoo and AOL have been failing since 3/7.
Lots of noise and confusion because Yahoo and AOL recently started enforcing stricter SPF/DKIM/DMARC requirements, but this seems to be unrelated. These emails are DKIM signed, pass SPF, and have a valid DMARC record.
Still investigating, will update the list with the eventual resolution.
- Cary
On Mon, Mar 11, 2024 at 1:27 PM bannereddivpool via Outages < outages@outages.org> wrote:
Anyone seeing any issues with yahoo email services? I keep getting dropped;
telnet mta6.am0.yahoodns.net 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com ESMTP ready EHLO mail.yahoo.com 250-mtaproxy501.free.mail.bf1.yahoo.com 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host.
Sending from outlook and I'm getting this as well;
*Diagnostic information for administrators:*
Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com Total retry attempts: 7
sample1@yahoo.com <babyereed2013@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
sample2@yahoo.com <jbliqemp@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
Original message headers: _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
Had to enable DKIM signing like Cary did. Working now. Sent from my iPhone. — Casey Johnson Colorado Interlink LLC ________________________________ From: Outages <outages-bounces@outages.org> on behalf of Cary Wiedemann via Outages <outages@outages.org> Sent: Monday, March 11, 2024 12:04:04 PM To: bannereddivpool <bannereddivpool@gmail.com>; outages <outages@outages.org> Subject: Re: [outages] yahoo Okay, just resolved this from my end. My O365 emails were being DKIM signed but by our . onmicrosoft.com<https://us-east-2.protection.sophos.com?d=onmicrosoft.com&u=aHR0cDovL29ubWljcm9zb2Z0LmNvbQ==&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=R3p2ejFlZ2FLb2s5L1lUeG9VcFh2L2NmT0xJV2lidWFLMEd1NTVBbnREWT0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> subdomain instead of the actual sending domain. Headers would show dkim=pass but the DKIM domain didn't match the FROM address in our envelopes. Had to enable DKIM signing on the custom domain in O365 here https://security.microsoft.com/authentication?viewid=DKIM<https://us-east-2.protection.sophos.com?d=microsoft.com&u=aHR0cHM6Ly9zZWN1cml0eS5taWNyb3NvZnQuY29tL2F1dGhlbnRpY2F0aW9uP3ZpZXdpZD1ES0lN&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=NSt3OGFMc2hlMDJTQWpIVDAzbTdCeTF1UEtOSENBUTZnekdBcnY0cy90WT0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> and setup CNAMEs for the proper selectors in DNS. DMARC reports from Yahoo helped me a ton here, but they were confusing. They showed DKIM failed in the policy_evaulated -> disposition section but showed result = pass in the auth_results -> dkim section. Just had my first successful email to Yahoo.com in days. Looks like the O365 DNSRBL inclusion was a red herring. - Cary On Mon, Mar 11, 2024 at 1:34 PM Cary Wiedemann < carywiedemann@gmail.com<mailto:carywiedemann@gmail.com>> wrote: Massive problems with email delivery to Yahoo and AOL today, they share a mail system on the back-end. Microsoft issued advisory EX719348 last Thursday for their IPs being included in some DNSRBLs, and I still see some of their IPs on the Spamhaus RBL (40.107.102.127) but I'm not sure if that's the root cause. All my emails from O365 to Yahoo and AOL have been failing since 3/7. Lots of noise and confusion because Yahoo and AOL recently started enforcing stricter SPF/DKIM/DMARC requirements, but this seems to be unrelated. These emails are DKIM signed, pass SPF, and have a valid DMARC record. Still investigating, will update the list with the eventual resolution. - Cary On Mon, Mar 11, 2024 at 1:27 PM bannereddivpool via Outages < outages@outages.org<mailto:outages@outages.org>> wrote: Anyone seeing any issues with yahoo email services? I keep getting dropped; telnet mta6.am0.yahoodns.net<https://us-east-2.protection.sophos.com?d=yahoodns.net&u=aHR0cDovL210YTYuYW0wLnlhaG9vZG5zLm5ldA==&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=aitmVzVySnBqUzY3TVdqWGhrM0F2TEUwb1B5L3oyVmNna0pJRzlQRS9Scz0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net<https://us-east-2.protection.sophos.com?d=yahoodns.net&u=aHR0cDovL210YTYuYW0wLnlhaG9vZG5zLm5ldA==&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=aitmVzVySnBqUzY3TVdqWGhrM0F2TEUwb1B5L3oyVmNna0pJRzlQRS9Scz0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA>. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com<https://us-east-2.protection.sophos.com?d=yahoo.com&u=aHR0cDovL210YXByb3h5NTAxLmZyZWUubWFpbC5iZjEueWFob28uY29t&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=UXh4OFN0TCtIODE0RlFlZUx3Z3N4Ukx0U21sYmJlTE5oMzlBck1VcG4wND0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> ESMTP ready EHLO mail.yahoo.com<https://us-east-2.protection.sophos.com?d=yahoo.com&u=aHR0cDovL21haWwueWFob28uY29t&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=UEpxSGZMWTdtNm1QRkUrc0ZZcXNPUDdVa2NpcllDdWdpMlJWOWFwWjhOOD0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> 250-mtaproxy501.free.mail.bf1.yahoo.com<https://us-east-2.protection.sophos.com?d=yahoo.com&u=aHR0cDovLzI1MC1tdGFwcm94eTUwMS5mcmVlLm1haWwuYmYxLnlhaG9vLmNvbQ==&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=STRvV05tZ0J4VE9sZFFVd2oyYXdEa1FWZU91eGYyM1U1ekJ5UjZva2xtcz0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host. Sending from outlook and I'm getting this as well; Diagnostic information for administrators: Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com<https://us-east-2.protection.sophos.com?d=outlook.com&u=aHR0cDovL1NKMlBSMTRNQjY1NTAubmFtcHJkMTQucHJvZC5vdXRsb29rLmNvbQ==&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=L1J1Q3Y3Vk9MSkRDNjNxZWJxcFlGNG9tTHg2QkZObHR0SU9ka1JubXBKOD0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> Total retry attempts: 7 sample1@yahoo.com<mailto:babyereed2013@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred' sample2@yahoo.com<mailto:jbliqemp@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred' Original message headers: _______________________________________________ Outages mailing list Outages@outages.org<mailto:Outages@outages.org> https://puck.nether.net/mailman/listinfo/outages<https://us-east-2.protection.sophos.com?d=nether.net&u=aHR0cHM6Ly9wdWNrLm5ldGhlci5uZXQvbWFpbG1hbi9saXN0aW5mby9vdXRhZ2Vz&i=NWM2NmQ4MGVmMGQyZjYxNmUwOGU4ZDIw&t=Q29YbzM0LzQ2Q0tyYzFycEFUQWFNUXBOb2lVYzR0bzdSYm84SXlJRFF4az0=&h=989758b7bcca4d3aba5e865a6b230530&s=AVNPUEhUT0NFTkNSWVBUSVa4W_XrGtx3Ajnr7Zxyq0IQZFZgu8f9tPFF4SoRdZDJkA> _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
On Mon, 11 Mar 2024, Cary Wiedemann via Outages wrote:
Massive problems with email delivery to Yahoo and AOL today, they share a mail system on the back-end. Microsoft issued advisory EX719348 last Thursday for their IPs being included in some DNSRBLs, and I still see some of their IPs on the Spamhaus RBL (40.107.102.127) but I'm not sure if that's the root cause.
Spamhaus has what they call a "Token" listing for that space. That means it's not present in any of the DNS zones (so no blocking should be done based on the listing), but it's in the back-end DB for tracking purposes and to generate a notification to Microsoft that they have an issue they should deal with. ---------------------------------------------------------------------- Jon Lewis, MCP :) | I route Blue Stream Fiber, Sr. Neteng | therefore you are _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________ _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
Hello Not seeing issues sending to Yahoo here, but your SMTP test likely failed because of the invalid EHLO command. Microsoft's MTA is sending you a failure notification because they were unable to deliver the email to Yahoo. Yahoo's error to Microsoft is as follows.
451 [RL01] Message temporarily deferred
It seems to me that Microsoft is having a problem delivering your email. Thanks! -- Matt Barton matt@netmonkey.net
On Mar 11, 2024, at 1:21 PM, bannereddivpool via Outages <outages@outages.org> wrote:
Anyone seeing any issues with yahoo email services? I keep getting dropped;
telnet mta6.am0.yahoodns.net <http://mta6.am0.yahoodns.net/> 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net <http://mta6.am0.yahoodns.net/>. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com <http://mtaproxy501.free.mail.bf1.yahoo.com/> ESMTP ready EHLO mail.yahoo.com <http://mail.yahoo.com/> 250-mtaproxy501.free.mail.bf1.yahoo.com <http://250-mtaproxy501.free.mail.bf1.yahoo.com/> 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host.
Sending from outlook and I'm getting this as well;
Diagnostic information for administrators:
Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com <http://sj2pr14mb6550.namprd14.prod.outlook.com/> Total retry attempts: 7
sample1@yahoo.com <mailto:babyereed2013@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
sample2@yahoo.com <mailto:jbliqemp@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
Original message headers:
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
_______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
Yes, I have clients experiencing issues from Microsoft to Yahoo since last week. On Mon, Mar 11, 2024 at 10:26 AM bannereddivpool via Outages < outages@outages.org> wrote:
Anyone seeing any issues with yahoo email services? I keep getting dropped;
telnet mta6.am0.yahoodns.net 25 Trying 67.195.204.74... Connected to mta6.am0.yahoodns.net. Escape character is '^]'. 220 mtaproxy501.free.mail.bf1.yahoo.com ESMTP ready EHLO mail.yahoo.com 250-mtaproxy501.free.mail.bf1.yahoo.com 250-PIPELINING 250-SIZE 41943040 250-8BITMIME 250 STARTTLS Connection closed by foreign host.
Sending from outlook and I'm getting this as well;
*Diagnostic information for administrators:*
Generating server: SJ2PR14MB6550.namprd14.prod.outlook.com Total retry attempts: 7
sample1@yahoo.com <babyereed2013@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
sample2@yahoo.com <jbliqemp@yahoo.com> Remote server returned '550 5.4.300 Message expired -> 451 [RL01] Message temporarily deferred'
Original message headers: _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
-- -- Sincerely, Chris Saylor Saylor Computer Consulting, LLC *NEW *: For all Support requests, please email support@saylorcomputer.com Web: http://www.saylorcomputer.com _______________________________________________ Outages mailing list Outages@outages.org https://puck.nether.net/mailman/listinfo/outages
participants (8)
-
bannereddivpool via Outages -
Cary Wiedemann via Outages
-
Casey Johnson via Outages
-
jd--- via Outages
-
Jon Lewis via Outages
-
Matt Barton via Outages
-
Mike Lyon via Outages
-
Saylor Computer Consulting, LLC via Outages