ERROR CODE 550, 521, and 554
I am getting mail bounced with these error codes when I send from my iphone or ipad.
Get Started. Write Away!
They don't bounce when I send it from web mail.
This started recently when I switched to using m.sync.zoho instead of IMAP and SMTP.
And I have tried setting up SPF details in a TXT record for my domain, without success.
I raised a support ticket on this several days ago but received no answer.
Can someone help?
More Detail:
I have Zoho Mail set up with an address at my personal domain.
Outwardly I use a yahoo email address, so all incoming mail is forwarded from Yahoo to my Zoho domain mail,
and all outgoing mail is set to Reply To the yahoo address.
and all outgoing mail is set to Reply To the yahoo address.
As I said, this all worked fine when I used IMAP and SMTP for the iphone and ipad, except that I wasn't getting Push notifications of incoming email. So I tried switching the iphone and ipad to use ActiveSync instead, following the instructions here: https://www.zoho.com/general/blog/announcing-zoho-sync-for-mobile-devices.html
Incoming mail is working fine. But when I try to send mails from iphone or ipad, I get bounces from some email addresses. The error code seems to vary depending destination.
GMAIL: Error, ERROR_CODE :550, ERROR_CODE :5.7.1 Unauthenticated email from yahoo.com is not accepted due to domain's
AOL: Error, ERROR_CODE :521, ERROR_CODE :5.2.1 : (DMARC) This message failed DMARC Evaluation and is being refused due to provided DMARC Policy
YAHOO: Error, ERROR_CODE :554, ERROR_CODE :5.7.9 Message not accepted for policy reasons
Not all email addresses bounce.
And nothing bounces if I send from my Zoho web mail.
Searching the forums I found this suggestion:
Following these instructions I have added a TXT record to my DNS settings listing both zoho.com and my personal domain as permitted domains. That was 24 hours ago, so it's had plenty of time to propogate. But I am still getting the mail bounces.
Thanks in advance for any help.
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