# SMTP Authentication Error

**URL:** <https://community.sitejet.io/t/smtp-authentication-error/714>\
**Category:** Report a bug\
**Tags:** crm\_email\
**Created:** [July 26, 2021, 3:07pm UTC](https://community.sitejet.io/t/smtp-authentication-error/714 "2021-07-26T15:07:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![warrenjacob](https://dub1.discourse-cdn.com/flex017/user_avatar/community.sitejet.io/warrenjacob/32/435_2.png) [@warrenjacob](https://community.sitejet.io/u/warrenjacob)\
**Post date:** [July 26, 2021, 3:07pm UTC](https://community.sitejet.io/t/smtp-authentication-error/714/1 "2021-07-26T15:07:19Z")

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We were running into a problem where we were getting a “Failed to authenticate SMTP Server…” although all password and username information was correct:

 ![failed authentication](https://europe1.discourse-cdn.com/flex017/uploads/sitejet/original/1X/0aa0473ac32db36c25313c9272ac3fbaab3bdd55.jpeg)

What we found is that this error was being generated because there were symbols in our password and was failing on the SiteJet side.

The resolution for us was simply changing the password to be only alphanumeric.

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**Author:** ![Andre](https://dub1.discourse-cdn.com/flex017/user_avatar/community.sitejet.io/andre/32/3459_2.png) [@Andre](https://community.sitejet.io/u/Andre)\
**Post date:** [July 28, 2021, 12:27pm UTC](https://community.sitejet.io/t/smtp-authentication-error/714/2 "2021-07-28T12:27:33Z")

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Thank you, Warren! I will forward this to the IT to check if there are any restrictions. Would not yet call it a bug, but a “feature” 🤣

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**Author:** ![Andre](https://dub1.discourse-cdn.com/flex017/user_avatar/community.sitejet.io/andre/32/3459_2.png) [@Andre](https://community.sitejet.io/u/Andre)\
**Post date:** [June 17, 2022, 12:16pm UTC](https://community.sitejet.io/t/smtp-authentication-error/714/3 "2022-06-17T12:16:04Z")

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