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Getting smtp error 554 due to bad reputation of sender

Status: Open.

#88 In zytzagoo/smtp-validate-email;

· rf1234 opened on Dec 15, 2025

No connection to any server

Status: Open.

#86 In zytzagoo/smtp-validate-email;

· selfauthor opened on Apr 9, 2025

Store SMTP response code in validation results (pull request)

Status: Open.

#85 In zytzagoo/smtp-validate-email;

· strein opened on Aug 19, 2024

how to verify emails in bulk

FAQ

Not an issue?

Status: Open.

#81 In zytzagoo/smtp-validate-email;

· M3d-Edge opened on Sep 7, 2023

Utilizing exceptions to provide informative messages in response.

Feature Request

Status: Open.

#80 In zytzagoo/smtp-validate-email;

· kriiv opened on Jan 6, 2023

Using ipv6 address binding to prevent backlists

Status: Open.

#74 In zytzagoo/smtp-validate-email;

· fabiochelly opened on Feb 10, 2022

i need help :(

Support Request

Status: Open.

#71 In zytzagoo/smtp-validate-email;

· routerlocal opened on May 21, 2021

recv: 550 IP blacklisted by Spamhaus

Support Request

Status: Open.

#70 In zytzagoo/smtp-validate-email;

· tobiascapin opened on May 17, 2021

Feature request DNS override

Feature Request

Status: Open.

#67 In zytzagoo/smtp-validate-email;

· aiso-net opened on Mar 24, 2021

How disgusting it is to see composer for 4 lines of code

Status: Open.

#66 In zytzagoo/smtp-validate-email;

· enreda-net opened on Mar 10, 2021

All address at the same domain becomes invalid if the server responds with 421 4.7.0 Error: too many errors

Support Request

Status: Open.

#60 In zytzagoo/smtp-validate-email;

· orionstar opened on Dec 18, 2020

Alternative port

FAQ

Status: Open.

#56 In zytzagoo/smtp-validate-email;

· tcdaly opened on Jul 17, 2020