[mailop] Spectrum/Charter issues

Hi, Can someone from Spectrum/Charter can reach out to me offlist? We are seeing some rate limiting issues which we want to address. Also any contacts would be greatly appreciated. Thx everyone Andy Onofrei Senior Email Deliverability Microsoft Dynamics

Re: [mailop] Bounces at cox.net (AUP#CXSNDR)

On 2/28/24 06:04, Simplelists - Andy Beverley via mailop wrote: Hi all, Has anyone seen an uptick in bounces in the last day or so to cox.net? We're seeing many (but not all) emails bounce, showing what are described as SPF/DKIM failures (AUP#CXSNDR), but as far as we can tell the emails

Re: [mailop] Gmail.com SPF false negatives?

Thanks again for all the advice. No problems today so far. I suspect this was some type of network issue, which affected only part of the Google network. As noted, we had zero failures for all domains but this one, and we had no failures sending to paid Google Workspace domains. Emanuel: > This

[mailop] Has anyone implemented outgoing TLS-Reporting with Postfix + DANE + MTA-STS ?

Dear list, I'm currently implementing a mail-service according to (very) high standards of German BSI Specification "BSI TR-03108 Secure Email-Transport, Version 2.0" see

[mailop] Anyone have issues with Higher Logic?

My client is getting his whole range blocked by Abuse RBL and the customer that used Higher Logic blocked by Microsoft and others as well with no relief in site even though they fixed the issue Even his personal server is affected even though he sends mostly nothing on it and nothing other

Re: [mailop] Bounces at cox.net (AUP#CXSNDR)

Replying off list > On Feb 28, 2024, at 7:04 AM, Simplelists - Andy Beverley via mailop > wrote: > > Hi all, > > Has anyone seen an uptick in bounces in the last day or so to cox.net? We're > seeing many (but not all) emails bounce, showing what are described as > SPF/DKIM failures

Re: [mailop] Bounces at cox.net (AUP#CXSNDR)

On Wed, 28 Feb 2024 14:04:07 +, Simplelists - Andy Beverley via mailop wrote: >Hi all, > >Has anyone seen an uptick in bounces in the last day or so to cox.net? Looking at consolidated statistics for all our hosted senders, 1,034,662 new messages in past 72 hours, 6,151 (0.52%) failed.

[mailop] Bounces at cox.net (AUP#CXSNDR)

Hi all, Has anyone seen an uptick in bounces in the last day or so to cox.net? We're seeing many (but not all) emails bounce, showing what are described as SPF/DKIM failures (AUP#CXSNDR), but as far as we can tell the emails should authenticate correctly. IP range is 78.143.254.0/24. Is

Re: [mailop] Gmail.com SPF false negatives?

On 2/28/2024 6:53 AM, Benny Pedersen via mailop wrote: L. Mark Stone via mailop skrev den 2024-02-27 23:52: I believe you need a DMARC record... does this fix spf fails ? Not directly, but for some evaluator configurations, it may alter their disposition handling behavior if a DMARC policy

Re: [mailop] Gmail.com SPF false negatives?

Kai Bojens via mailop skrev den 2024-02-28 08:35: Am 27.02.24 um 23:30 schrieb Rob Nagler via mailop: $ dig +short txt nagler.me "v=spf1 a mx ip4:139.177.203.52 include:_spf.google.com -all" A TTL of just 300 seconds is way too short IMHO. If

Re: [mailop] Gmail.com SPF false negatives?

Matt Palmer via mailop skrev den 2024-02-27 23:59: Any chance of a transient/intermittent DNS failure on nagler.me? On occasion I've seen spurious SPF/DKIM failures when there's been a flaky DNS server in the mix. first fix spf to be valid for the sender domain in question, as it is now

Re: [mailop] Gmail.com SPF false negatives?

Jarland Donnell via mailop skrev den 2024-02-27 23:54: Is it plausible that Google had a temporary issue reaching your DNS servers? impossible is possible ? ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Gmail.com SPF false negatives?

L. Mark Stone via mailop skrev den 2024-02-27 23:52: I believe you need a DMARC record... does this fix spf fails ? ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Gmail.com SPF false negatives?

Rob Nagler via mailop skrev den 2024-02-27 23:30: gmail.com [1] started failing messages from domains which are correctly setup for SPF (and have been for some years): 550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM. 550-5.7.26 550-5.7.26 Authentication

Re: [mailop] Gmail.com SPF false negatives?

Oh sry just saw Emanuel’s response. On Wed, Feb 28, 2024 at 7:37 AM Opti Pub wrote: > I agree on a longer TTL in general if you’re not doing maint but a short > TTL shouldn’t cause failures by itself… unless you’re maxing a limit on > lookups or something? > > Looks like it’s on cloudflare who

Re: [mailop] Gmail.com SPF false negatives?

I agree on a longer TTL in general if you’re not doing maint but a short TTL shouldn’t cause failures by itself… unless you’re maxing a limit on lookups or something? Looks like it’s on cloudflare who claims not to cap/cut off lookups but maybe you have some reporting on that end you could check

Re: [mailop] Gmail.com SPF false negatives?

Am 27.02.24 um 23:30 schrieb Rob Nagler via mailop: $ dig +short txt nagler.me "v=spf1 a mx ip4:139.177.203.52 include:_spf.google.com -all" A TTL of just 300 seconds is way too short IMHO. If anything happens to your DNS you just have five minutes