Mahmoud arrived in Tehran this week to replace the former envoy, Hamed Hassan, who worked in the post for nine years.
Mahmoud has previously worked as Managing-Director of the state Syrian News Agency (SANA), head of SANA's bureau in Egypt, and professor of communications science at Damascus University. He holds a doctorate degree in communications.
The Islamic Republic of Iran is in favor of negotiations between the Syrian government and opposition groups to create stability in the Middle Eastern country.
Tehran has recently doubled its efforts to settle the problems in Syria. On November 18, Iran hosted the Syrian National Dialogue Conference, with the motto "No to Violence, Yes to Democracy".
Over 200 Syrian religious and political figures, leaders of tribes and parties as well as representatives and leaders of the opposition groups took part in the two-day meeting in Tehran.
A number of Syrian parliament members as well as senior political figures from Sudan, Algeria, Turkey, Egypt, Lebanon, Iraq, Brazil and Zimbabwe also took part in the meeting.
This was the first time that both Syrian opposition figures and the minister of national reconciliation Ali Haidar, as the representative of Syrian President Bashar al-Assad's government, discussed ways of finding a solution to the Syrian crisis.
Syria experienced unrest for several months with organized attacks by well-armed gangs against Syrian police forces and border guards being reported across the country.
The government blamed outlaws, saboteurs, and armed terrorist groups for the deaths, stressing that the unrest was orchestrated from abroad.
In October, calm was eventually restored in the Arab state after President Bashar al-Assad started a reform initiative in the country, but the US and Israeli plots could spark some new unrests in certain parts of the country.