# Smtp;553 5.7.2 \[TSS09\] All messages from xx.xxx.xxx.xxx will be permanently deferred; Retrying will NOT succeed. See https://help.yahoo.com/kb/postmaster/SLN3436.html

**URL:** <https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526>\
**Category:** uncategorized\
**Created:** [May 25, 2020, 12:09pm UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526 "2020-05-25T12:09:31Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![caiman](https://discourse.mailinabox.email/letter_avatar_proxy/v4/letter/c/dec6dc/32.png) [@caiman](https://discourse.mailinabox.email/u/caiman)\
**Post date:** [May 25, 2020, 12:09pm UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/1 "2020-05-25T12:09:31Z")

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I am getting this error.  
smtp;553 5.7.2 [TSS09] All messages from xx.xxx.xxx.xxx will be permanently deferred; Retrying will NOT succeed. See [https://help.yahoo.com/kb/postmaster/SLN3436.html](https://help.yahoo.com/kb/postmaster/SLN3436.html)

My all emails are not delivering. I just setup my bulk email server with 100 ips.

Please help.

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**Author:** ![JoshData](https://discourse.mailinabox.email/user_avatar/discourse.mailinabox.email/joshdata/32/2153_2.png) [@JoshData](https://discourse.mailinabox.email/u/JoshData)\
**Post date:** [May 25, 2020, 12:32pm UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/2 "2020-05-25T12:32:23Z")

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Mail-in-a-Box was not designed to be a bulk email server. If you’re sending bulk email, a regular transactional email provider that manages your compliance with spam/feedback protocols and laws would be much better.

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**Author:** ![alento](https://discourse.mailinabox.email/user_avatar/discourse.mailinabox.email/alento/32/1371_2.png) [@alento](https://discourse.mailinabox.email/u/alento)\
**Post date:** [May 25, 2020, 8:06pm UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/3 "2020-05-25T20:06:37Z")

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> [@caiman](#):
>
> I am getting this error.  
> smtp;553 5.7.2 [TSS09] All messages from xx.xxx.xxx.xxx will be permanently deferred; Retrying will NOT succeed. See [Help for your Yahoo Account](https://help.yahoo.com/kb/postmaster/SLN3436.html)
> 
> My

You’ve been banned from sending emails to Verizon domains. Your only choice is to follow the instructions and comply or forget about sending to Yahoo! and other Verizon domains. Or another option is to pay to use a SMTP relay service such as AWS.

If your intention is to send bulk emails and self host it, I suggest that you look into PowerMTA as your MTA rather than using MiaB as MiaB is not designed for such use as noted by @JoshData

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**Author:** ![caiman](https://discourse.mailinabox.email/letter_avatar_proxy/v4/letter/c/dec6dc/32.png) [@caiman](https://discourse.mailinabox.email/u/caiman)\
**Post date:** [May 26, 2020, 3:45am UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/4 "2020-05-26T03:45:50Z")

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I am using interspire for front end and backend power mta

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**Author:** ![caiman](https://discourse.mailinabox.email/letter_avatar_proxy/v4/letter/c/dec6dc/32.png) [@caiman](https://discourse.mailinabox.email/u/caiman)\
**Post date:** [May 26, 2020, 3:48am UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/5 "2020-05-26T03:48:21Z")

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I am using interspire for front end and power mta for backend.

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**Author:** ![alento](https://discourse.mailinabox.email/user_avatar/discourse.mailinabox.email/alento/32/1371_2.png) [@alento](https://discourse.mailinabox.email/u/alento)\
**Post date:** [May 26, 2020, 3:50am UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/6 "2020-05-26T03:50:53Z")

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Then why are you posting here??? @caiman

This forum is for Mail-in-a-Box which is neither Interspire NOR uses PowerMTA.

Perhaps you should seek support from one of those companies?

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**Author:** ![alento](https://discourse.mailinabox.email/user_avatar/discourse.mailinabox.email/alento/32/1371_2.png) [@alento](https://discourse.mailinabox.email/u/alento)\
**Post date:** [July 16, 2022, 1:55pm UTC](https://discourse.mailinabox.email/t/smtp-553-5-7-2-tss09-all-messages-from-xx-xxx-xxx-xxx-will-be-permanently-deferred-retrying-will-not-succeed-see-https-help-yahoo-com-kb-postmaster-sln3436-html/6526/10 "2022-07-16T13:55:22Z")

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