[mailop] Sudden spike in Gmail failures ("TempFail – Spam")

2024-04-29 Thread Mendel Kucharzeck via mailop
Hi, During my last email campaign, I’ve encountered issues with gmail – and after investigating this for a few days, I cannot make heads or tails of the results. Maybe anyone can shed any light on what is happening. Environment: Mailing list of around 150k subscribers, double opt-in. Using AWS

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

2024-04-30 Thread Mendel Kucharzeck via mailop
Hi, > Am 29.04.2024 um 20:28 schrieb Michael Peddemors via mailop > : > > On 2024-04-29 08:02, Mendel Kucharzeck via mailop wrote: >> Hi, >> During my last email campaign, I’ve encountered issues with gmail – and >> after investigating this for a few days, I can

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

2024-04-30 Thread Mendel Kucharzeck via mailop
> Am 30.04.2024 um 12:06 schrieb Matus UHLAR - fantomas via mailop > : > >> But this may be related to the drop in reputation of Amazon SES IP Space. >> Do they offer a dedicated outgoing IP Address that you can try? It also >> helps reduce any chance of forgeries.. Eg, smaller SPF footprint,

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

2024-04-30 Thread Mendel Kucharzeck via mailop
, that >>>>> could have poisoned your reputation. >> >>>> Am 30.04.2024 um 12:06 schrieb Matus UHLAR - fantomas via mailop >>>> : >>>> DKIM should help as well or even better. >>>> _domainkey.newsletter.syniumsoftware.com pro

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

2024-04-30 Thread Mendel Kucharzeck via mailop
Laura, Thanks for your reply! Highly appreciated. Inline: >> - Anyone else seeing this behaviour from gmail recently? >> - Could the newly created, custom MAIL-FROM-domain cause a behaviour like >> this? The MAIL-FROM-Domain has not yet been used before, but the sending >> email address was the

Re: [mailop] Sudden spike in Gmail failures ("TempFail – Spam")

2024-04-30 Thread Mendel Kucharzeck via mailop
Laura, Again, thanks for your insights! Inline: - Anyone else seeing this behaviour from gmail recently? - Could the newly created, custom MAIL-FROM-domain cause a behaviour like this? The MAIL-FROM-Domain has not yet been used before, but the sending email address was the s

Re: [mailop] Apple mail admins?

2024-05-02 Thread Mendel Kucharzeck via mailop
Hi, I would try contacting icloudad...@apple.com Best, Mendel > Am 02.05.2024 um 23:13 schrieb Jason R Cowart via mailop : > > Is anyone from the Apple email team here by chance? If so, please contact me > off list. > It appears that Apple is sending to our use